{"ops":[{"insert":"Deck Primer: Yidris, Maelstrom Wielder – Exponential Cascade Storm"},{"attributes":{"header":1},"insert":"\n"},{"attributes":{"bold":true},"insert":"Commander:"},{"insert":" Yidris, Maelstrom Wielder\n"},{"attributes":{"bold":true},"insert":"Color Identity:"},{"insert":" Sans-White / Glint-Eye ($\\text{UBRG}$)\n"},{"attributes":{"bold":true},"insert":"Archetype:"},{"insert":" Multi-Combat Cascade Storm / Free-Cast Velocity / Exponential Mana Scaling / Chaos Engine\n"},{"attributes":{"header":2},"insert":"\n"},{"insert":"Overview"},{"attributes":{"header":2},"insert":"\n"},{"attributes":{"bold":true},"insert":"Yidris, Maelstrom Wielder"},{"insert":" is an explosive four-color commander whose ability alters the fundamental cost structure of your entire deck: "},{"attributes":{"bold":true},"insert":"Whenever Yidris deals combat damage to a player, as you cast spells from your hand this turn, they gain cascade."},{"insert":"\nTrue to your signature deckbuilding style, this list doesn't rely on generic \"goodstuff\" value or single-cascade triggers. Instead, it exploits a critical rules-layering mechanics loop: "},{"attributes":{"bold":true},"insert":"Yidris's combat damage trigger is cumulative, and Cascade triggers on CAST, not resolution."},{"insert":"\nBy stacking multiple combat steps ("},{"attributes":{"bold":true},"insert":"Seize the Day"},{"insert":", "},{"attributes":{"bold":true},"insert":"Moraug"},{"insert":", "},{"attributes":{"bold":true},"insert":"Karlach"},{"insert":", "},{"attributes":{"bold":true},"insert":"Aggravated Assault"},{"insert":", "},{"attributes":{"bold":true},"insert":"Scourge of the Throne"},{"insert":") and double-strike mechanics ("},{"attributes":{"bold":true},"insert":"Lizard Blades"},{"insert":", "},{"attributes":{"bold":true},"insert":"Rage Reflection"},{"insert":"), Yidris can hit a player 2, 3, or 4 times in a single turn cycle. This grants "},{"attributes":{"bold":true},"insert":"Double, Triple, or Quadruple Cascade to every single spell cast from your hand"},{"insert":". Dropping a 0-mana "},{"attributes":{"bold":true},"insert":"Ghalta, Primal Hunger"},{"insert":" triggers four separate cascades for high mana values, dumping 20+ spells onto the stack in a single phase and storming off through your entire library.\n"},{"attributes":{"header":2},"insert":"\n"},{"insert":"The Core Pillars of the Deck"},{"attributes":{"header":2},"insert":"\n"},{"insert":"[Evasion & Combat Connection] ──> [Multi-Combat Trigger Stacking] ──> [High-CMC Free Cascades] ──> [Exponential Untap Storm]"},{"attributes":{"code-block":"plain"},"insert":"\n"},{"insert":"(Whispersilk Cloak, Swiftfoot, (Seize the Day, Moraug, Karlach, (Ghalta, Maelstrom Wanderer, (Mana Geyser, Nature's Will,"},{"attributes":{"code-block":"plain"},"insert":"\n"},{"insert":" Sword of Hearth and Home) Bloodthirster, Overpowering) Profane/Inevitable Betrayal) Bear Umbra, Savage Ventmaw)"},{"attributes":{"code-block":"plain"},"insert":"\n"},{"insert":"1. Connecting Combat & Evasive Delivery"},{"attributes":{"header":3},"insert":"\n"},{"insert":"Because Yidris must deal combat damage to trigger his cascade-granting emblem, securing a clear path to an opponent's face is paramount:\n"},{"attributes":{"bold":true},"insert":"Unblockable & Protection Evasion:"},{"insert":" "},{"attributes":{"bold":true},"insert":"Whispersilk Cloak"},{"insert":", "},{"attributes":{"bold":true},"insert":"Swiftfoot Boots"},{"insert":", "},{"attributes":{"bold":true},"insert":"Winged Boots"},{"insert":", and "},{"attributes":{"bold":true},"insert":"Sword of Hearth and Home"},{"insert":" ensure Yidris slips past flying, reach, and wide token boards."},{"attributes":{"list":"bullet"},"insert":"\n"},{"attributes":{"bold":true},"insert":"Double-Strike Multipliers:"},{"insert":" "},{"attributes":{"bold":true},"insert":"Lizard Blades"},{"insert":" and "},{"attributes":{"bold":true},"insert":"Rage Reflection"},{"insert":" force Yidris to deal combat damage twice in a single combat step—giving every spell you cast during Main Phase 2 "},{"attributes":{"bold":true},"insert":"Double Cascade"},{"insert":" right out of the gate."},{"attributes":{"list":"bullet"},"insert":"\n"},{"attributes":{"bold":true},"insert":"Utility Evasion & Protection:"},{"insert":" "},{"attributes":{"bold":true},"insert":"Torrent Elemental"},{"insert":" taps down opposing blockers on attack, while "},{"attributes":{"bold":true},"insert":"Saryth, the Viper's Fang"},{"insert":" provides defensive hexproof while granting deathtouch to make blocking Yidris completely unprofitable."},{"attributes":{"list":"bullet"},"insert":"\n"},{"insert":"2. Multi-Combat Trigger Stacking (Rules-Layering Core)"},{"attributes":{"header":3},"insert":"\n"},{"insert":"Under MTG Rule 603.2, each time Yidris connects with an opponent, he creates an independent delayed trigger instance that lasts until end of turn. "},{"attributes":{"bold":true},"insert":"These instances stack:"},{"insert":"\n"},{"attributes":{"bold":true},"insert":"Extra Combat Engines:"},{"insert":" "},{"attributes":{"bold":true},"insert":"Seize the Day"},{"insert":", "},{"attributes":{"bold":true},"insert":"Karlach, Fury of Avernus"},{"insert":", "},{"attributes":{"bold":true},"insert":"Moraug, Fury of Akoum"},{"insert":", "},{"attributes":{"bold":true},"insert":"Bloodthirster"},{"insert":", "},{"attributes":{"bold":true},"insert":"Hellkite Charger"},{"insert":", "},{"attributes":{"bold":true},"insert":"Aggravated Assault"},{"insert":", and "},{"attributes":{"bold":true},"insert":"Overpowering Attack"},{"insert":" allow Yidris to attack 2 to 5 times per turn cycle."},{"attributes":{"list":"bullet"},"insert":"\n"},{"attributes":{"bold":true},"insert":"The Math of Multi-Cascade:"},{"attributes":{"list":"bullet"},"insert":"\n"},{"insert":"1 Attack Hit $\\rightarrow$ All spells from hand have "},{"attributes":{"bold":true},"insert":"Cascade"},{"insert":"."},{"attributes":{"indent":1,"list":"bullet"},"insert":"\n"},{"insert":"2 Attack Hits $\\rightarrow$ All spells from hand have "},{"attributes":{"bold":true},"insert":"Cascade, Cascade"},{"insert":"."},{"attributes":{"indent":1,"list":"bullet"},"insert":"\n"},{"insert":"3 Attack Hits $\\rightarrow$ All spells from hand have "},{"attributes":{"bold":true},"insert":"Cascade, Cascade, Cascade"},{"insert":"."},{"attributes":{"indent":1,"list":"bullet"},"insert":"\n"},{"attributes":{"bold":true},"insert":"Cascade Chain-Reaction:"},{"insert":" Paired with native cascade enablers ("},{"attributes":{"bold":true},"insert":"Imoti, Celebrant of Bounty"},{"insert":", "},{"attributes":{"bold":true},"insert":"Maelstrom Wanderer"},{"insert":", "},{"attributes":{"bold":true},"insert":"Averna, the Chaos Bloom"},{"insert":", "},{"attributes":{"bold":true},"insert":"Wild-Magic Sorcerer"},{"insert":"), a single cast off your hand initiates cascading chains that branch off 6 to 12 times into your deck."},{"attributes":{"list":"bullet"},"insert":"\n"},{"insert":"3. Suspended 0-Mana Target Nukes"},{"attributes":{"header":3},"insert":"\n"},{"insert":"Because Cascade searches for a card with "},{"attributes":{"italic":true},"insert":"strictly lesser"},{"insert":" converted mana cost/mana value, running 0-mana spells with no mana cost allows high-value cascades to hit guaranteed game-ending targets:\n"},{"attributes":{"bold":true},"insert":"Inevitable Betrayal:"},{"insert":" Cascading into "},{"attributes":{"italic":true},"insert":"Inevitable Betrayal"},{"insert":" lets you search an opponent's library and put their best win-condition creature straight onto your battlefield."},{"attributes":{"list":"bullet"},"insert":"\n"},{"attributes":{"bold":true},"insert":"Profane Tutor:"},{"insert":" Functions as a 0-cost, instant-resolution tutor off any 1+ CMC spell cast under Yidris, grabbing "},{"attributes":{"bold":true},"insert":"Mind's Desire"},{"insert":" or "},{"attributes":{"bold":true},"insert":"Moraug"},{"insert":" directly to your hand."},{"attributes":{"list":"bullet"},"insert":"\n"},{"attributes":{"bold":true},"insert":"Ghalta, Primal Hunger (The Cost-Reduction Machine):"},{"insert":" Ghalta costs 12 mana, but her cost is reduced by the total power of creatures you control. You can cast Ghalta for as little as $\\{G\\}\\{G\\}$ (2 mana), but Cascade checks her "},{"attributes":{"bold":true},"insert":"printed CMC of 12"},{"insert":". This triggers 1 to 4 Cascades searching for cards under 12 CMC ("},{"attributes":{"bold":true},"insert":"Maelstrom Wanderer"},{"insert":", "},{"attributes":{"bold":true},"insert":"Aminatou's Augury"},{"insert":", "},{"attributes":{"bold":true},"insert":"Etali"},{"insert":"), cascading through almost your entire deck for 2 green mana."},{"attributes":{"list":"bullet"},"insert":"\n"},{"attributes":{"header":2},"insert":"\n"},{"insert":"💥 Winning the Game: The Storm & Mana Engines"},{"attributes":{"header":2},"insert":"\n"},{"insert":"[Stack 3+ Yidris Hit Triggers] ──> [Cast Mana Untap Engine] ──> [Cascade 6-12 Times Free] ──> [Resolve Mind's Desire / Augury]"},{"attributes":{"code-block":"plain"},"insert":"\n"},{"attributes":{"bold":true},"insert":"The Infinite Combat Lock (Aggravated Assault + Nature's Will / Bear Umbra / Savage Ventmaw):"},{"attributes":{"list":"ordered"},"insert":"\n"},{"attributes":{"bold":true},"insert":"Execution:"},{"insert":" Attack with Yidris while "},{"attributes":{"bold":true},"insert":"Nature's Will"},{"insert":", "},{"attributes":{"bold":true},"insert":"Bear Umbra"},{"insert":", or "},{"attributes":{"bold":true},"insert":"Savage Ventmaw"},{"insert":" is on board."},{"attributes":{"indent":1,"list":"bullet"},"insert":"\n"},{"attributes":{"bold":true},"insert":"The Loop:"},{"insert":" Combat damage triggers un-tapping all your lands or generating $\\{2\\}\\{R\\}\\{G\\}\\{G\\}\\{W\\}$. Spend 5 mana to activate "},{"attributes":{"bold":true},"insert":"Aggravated Assault"},{"insert":", untapping your creatures and granting an additional combat phase. Repeat infinitely for infinite attack steps, infinite Yidris triggers, and infinite cascades."},{"attributes":{"indent":1,"list":"bullet"},"insert":"\n"},{"attributes":{"bold":true},"insert":"Exponential Mana & Cast Storm (Mana Geyser / Turnabout / Neheb + Mind's Desire):"},{"attributes":{"list":"ordered"},"insert":"\n"},{"insert":"Generate $20+$ mana via "},{"attributes":{"bold":true},"insert":"Mana Geyser"},{"insert":", "},{"attributes":{"bold":true},"insert":"Neheb, the Eternal"},{"insert":", or "},{"attributes":{"bold":true},"insert":"Zendikar Resurgent"},{"insert":". Cast "},{"attributes":{"bold":true},"insert":"Mind's Desire"},{"insert":" with a storm count of 15+ after cascading through your deck. Shuffle and exile the top 15 cards of your library to cast them all for free without paying their mana costs."},{"attributes":{"indent":1,"list":"bullet"},"insert":"\n"},{"attributes":{"bold":true},"insert":"Mass Asymmetrical Board Wipe & Theft (Baral's Expertise / River's Rebuke + Nalfeshnee):"},{"attributes":{"list":"ordered"},"insert":"\n"},{"attributes":{"bold":true},"insert":"Nalfeshnee"},{"insert":" copies any spell you cast from exile. Because Cascade casts spells directly from exile, Nalfeshnee doubles every single cascaded spell ("},{"attributes":{"bold":true},"insert":"Casualties of War"},{"insert":", "},{"attributes":{"bold":true},"insert":"River's Rebuke"},{"insert":", "},{"attributes":{"bold":true},"insert":"Rishkar's Expertise"},{"insert":"), wiping opponents' entire boards while copying your draw engines."},{"attributes":{"indent":1,"list":"bullet"},"insert":"\n"},{"attributes":{"header":2},"insert":"\n"},{"insert":"Gameplan & Strategy"},{"attributes":{"header":2},"insert":"\n"},{"insert":"1. Early Game (Turns 1–3)"},{"attributes":{"header":3},"insert":"\n"},{"insert":"Deploy low-cost mana dorks and acceleration ("},{"attributes":{"bold":true},"insert":"Ignoble Hierarch"},{"insert":", "},{"attributes":{"bold":true},"insert":"Arcane Signet"},{"insert":", "},{"attributes":{"bold":true},"insert":"Nature's Lore"},{"insert":", "},{"attributes":{"bold":true},"insert":"Goblin Anarchomancer"},{"insert":"). Set up early haste or evasion infrastructure ("},{"attributes":{"bold":true},"insert":"Swiftfoot Boots"},{"insert":", "},{"attributes":{"bold":true},"insert":"Whispersilk Cloak"},{"insert":", "},{"attributes":{"bold":true},"insert":"Temur Ascendancy"},{"insert":").\n2. Mid Game (Turns 4–5)"},{"attributes":{"header":3},"insert":"\n"},{"insert":"Cast "},{"attributes":{"bold":true},"insert":"Yidris, Maelstrom Wielder"},{"insert":". Equip evasion/haste and swing at the player with the most open board. Connect for damage to establish your cascade emblem. Follow up during Main Phase 2 by casting mid-cost spells ("},{"attributes":{"bold":true},"insert":"Garruk's Uprising"},{"insert":", "},{"attributes":{"bold":true},"insert":"Harmonize"},{"insert":", "},{"attributes":{"bold":true},"insert":"Skyshroud Claim"},{"insert":") to start cascading out free ramp and draw engines.\n3. Late Game (Turns 6+)"},{"attributes":{"header":3},"insert":"\n"},{"insert":"Deploy extra combat engines ("},{"attributes":{"bold":true},"insert":"Karlach"},{"insert":", "},{"attributes":{"bold":true},"insert":"Seize the Day"},{"insert":", "},{"attributes":{"bold":true},"insert":"Moraug"},{"insert":", "},{"attributes":{"bold":true},"insert":"Aggravated Assault"},{"insert":"). Swing with Yidris multiple times to stack 2x or 3x cascade emblems. Cast "},{"attributes":{"bold":true},"insert":"Ghalta, Primal Hunger"},{"insert":" or "},{"attributes":{"bold":true},"insert":"Maelstrom Wanderer"},{"insert":" to fire off dozens of cascading spells, resolve "},{"attributes":{"bold":true},"insert":"Mind's Desire"},{"insert":", and overrun the table in a single overwhelming turn.\n"}]}