Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, this creature can't be blocked this turn."

Whenever Iron Mastiff attacks, roll a d20 for each player being attacked and ignore all but the highest roll. 1—9 | Iron Mastiff deals damage equal to its power to you. 10—19 | Iron Mastiff deals damage equal to its power to defending player. 20 | Iron Mastiff deals damage equal to its power to each opponent.

Roll two d8 and choose one result. Draw cards equal to that result. Then you may cast an instant or sorcery spell with mana value less than or equal to the other result from your hand without paying its mana cost.

Enchant creature Enchanted creature has "Whenever this creature deals combat damage to a player, draw a card." As long as enchanted creature is legendary, it gets +1/+1 and has ward {1}. (Whenever enchanted creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.)

Roll a d20. 1—9 | Draw two cards. 10—19 | Scry 2, then draw two cards. 20 | Scry 3, then draw three cards.

Roll a d20 and add the number of cards in your hand. 1—14 | Draw X cards. 15+ | Scry X, then draw X cards.

Flying When Djinni Windseer enters the battlefield, roll a d20. 1—9 | Scry 1. 10—19 | Scry 2. 20 | Scry 3.

Dark One's Own Luck — Whenever you roll one or more dice, Farideh, Devil's Chosen gains flying and menace until end of turn. If any of those results was 10 or higher, draw a card.

Focus Beam — At the beginning of your upkeep, roll a d4. Scry X, where X is the result. Perfect Illumination — Whenever you roll a die's highest natural result, draw a card.

Whenever equipped creature deals combat damage to a player, you draw that many cards. Equip {4} Equip Shaman, Warlock, or Wizard {1}

Whenever equipped creature attacks, roll a six-sided die. That creature gets +X/+0 until end of turn, where X is the result. Then if it has the greatest power or is tied for greatest power among creatures on the battlefield, draw a card. Equip {3}

Commander creatures you own have "At the beginning of your upkeep, exile the top card of your library. This creature gets +X/+0 until end of turn, where X is that card's mana value. You may play that card this turn."

{2}, {T}: Roll a d20 and subtract the number of cards in your hand. If the result is 0 or less, discard your hand. 1—9 | Return a card at random from your graveyard to your hand. 10—19 | Draw two cards. 20 | Put a creature card from any graveyard onto the battlefield under your control. When that creature dies, its owner loses the game.

{4}, Sacrifice Treasure Chest: Roll a d20. 1 | Trapped! — You lose 3 life. 2—9 | Create five Treasure tokens. 10—19 | You gain 3 life and draw three cards. 20 | Search your library for a card. If it's an artifact card, you may put it onto the battlefield. Otherwise, put that card into your hand. Then shuffle.

{4}, {T}: Roll a d20. Each opponent exiles cards from the top of their library until they exile an instant or sorcery card, then shuffles the rest into their library. You may cast up to X instant and/or sorcery spells from among cards exiled this way without paying their mana costs. 1—9 | X is one. 10—19 | X is two. 20 | X is three.

{T}: Add one mana of any color in your commander's color identity.

{T}: Add {C}. {1}{U}{R}, {T}: Draw a card, then discard a card.

Forgotten Cave enters the battlefield tapped. {T}: Add {R}. Cycling {R} ({R}, Discard this card: Draw a card.)

({T}: Add {U}.)

Izzet Boilerworks enters the battlefield tapped. When Izzet Boilerworks enters the battlefield, return a land you control to its owner's hand. {T}: Add {U}{R}.

{T}: Add {C}. {4}, {T}: Remove target attacking or blocking creature from combat.

Lonely Sandbar enters the battlefield tapped. {T}: Add {U}. Cycling {U} ({U}, Discard this card: Draw a card.)

({T}: Add {R}.)

Myriad Landscape enters the battlefield tapped. {T}: Add {C}. {2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

{T}: Add {C}. {1}, {T}: Add one mana of any color in your commander's color identity. If you spend this mana to cast your commander, it enters the battlefield with a number of additional +1/+1 counters on it equal to the number of times it's been cast from the command zone this game.

Prismari Campus enters the battlefield tapped. {T}: Add {U} or {R}. {4}, {T}: Scry 1.

You have no maximum hand size. {T}: Add {C}.

Remote Isle enters the battlefield tapped. {T}: Add {U}. Cycling {2} ({2}, Discard this card: Draw a card.)

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

Smoldering Crater enters the battlefield tapped. {T}: Add {R}. Cycling {2} ({2}, Discard this card: Draw a card.)

Soaring Seacliff enters the battlefield tapped. When Soaring Seacliff enters the battlefield, target creature gains flying until end of turn. {T}: Add {U}.

Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) Spinerock Knoll enters the battlefield tapped. {T}: Add {R}. {R}, {T}: You may play the exiled card without paying its mana cost if an opponent was dealt 7 or more damage this turn.

{T}: Add {C}. {1}, {T}: Add one mana of any color. When you spend this mana to cast your commander, scry X, where X is the number of times it's been cast from the command zone this game.

Sulfur Falls enters the battlefield tapped unless you control an Island or a Mountain. {T}: Add {U} or {R}.

Temple of Epiphany enters the battlefield tapped. When Temple of Epiphany enters the battlefield, scry 1. {T}: Add {U} or {R}.

Enchant permanent Enchanted permanent has hexproof. When enchanted permanent leaves the battlefield, if it was historic, draw two cards. (Artifacts, legendaries, and Sagas are historic.)

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.) Equip {1}

Equipped creature has flying and ward {4}. (Whenever equipped creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {4}.) Equip {1}

(Gain the next level as a sorcery to add its ability.) If you would roll one or more dice, instead roll that many dice plus one and ignore the lowest roll. {1}{R}: Level 2 Whenever you roll one or more dice, target creature you control gets +2/+0 and gains menace until end of turn. {2}{R}: Level 3 Creatures you control have haste.

Target creature gains double strike until end of turn. When you roll a natural 20, return Critical Hit from your graveyard to your hand. (A natural 20 is a roll that displays 20 on the die.)

Whenever equipped creature attacks, put a +1/+1 counter on it. Whenever equipped creature deals combat damage, roll a d12. If the result is greater than the damage dealt or the result is 12, double the number of +1/+1 counters on that creature. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Target creature gains double strike until end of turn. Ferocious — That creature also gains trample until end of turn if you control a creature with power 4 or greater.

{T}: Add one mana of any color in your commander's color identity.

{1}, {T}: Roll a d4 and create a number of Treasure tokens equal to the result. The player to your right gains control of Bucknard's Everfull Purse.

{T}, Remove a component counter from Component Pouch: Add two mana of different colors. {T}: Roll a d20. 1—9 | Put a component counter on Component Pouch. 10—20 | Put two component counters on Component Pouch.

You have no maximum hand size. {T}: Add one mana of any color.

Ebony Fly enters the battlefield tapped. {T}: Add {C}. {4}: Roll a d6. Until end of turn, you may have Ebony Fly become an X/X Insect artifact creature with flying, where X is the result. Whenever Ebony Fly attacks, another target attacking creature gains flying until end of turn.

Instant and sorcery spells you cast cost {1} less to cast.

Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, you create two Treasure tokens." (They're artifacts with "{T}, Sacrifice this artifact: Add one mana of any color.")

{T}: Add {C}{C}. {2}, {T}, Sacrifice Hedron Archive: Draw two cards.

Whenever Hoarding Ogre attacks, roll a d20. 1—9 | Create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.") 10—19 | Create two Treasure tokens. 20 | Create three Treasure tokens.

{1}, {T}: Add {U}{R}.

{T}: Add {U}. {2}{U}: Put an hour counter on Midnight Clock. At the beginning of each upkeep, put an hour counter on Midnight Clock. When the twelfth hour counter is put on Midnight Clock, shuffle your hand and graveyard into your library, then draw seven cards. Exile Midnight Clock.

{T}: Add {C}{C}.

{T}: Add {C}. {T}: Add {U} or {R}. Talisman of Creativity deals 1 damage to you.

Psionic Spells — When Aberrant Mind Sorcerer enters the battlefield, choose target instant or sorcery card in your graveyard, then roll a d20. 1—9 | You may put that card on top of your library. 10—20 | Return that card to your hand.

Return all attacking creatures to their owner's hand.

For each attacking creature, its owner puts it on the top or bottom of their library.

Cast this spell only before combat or during combat before blockers are declared. Roll two d20 and ignore the lower roll. 1—14 | Choose any number of creatures. They block this turn if able. 15—20 | You choose which creatures block this turn and how those creatures block.

Return target creature to its owner's hand, then roll a six-sided die. If the result is 3 or less, scry a number of cards equal to the result.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

{6}, Roll a d8: Monstrosity X, where X is the result. (If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.) Berserk — When Clay Golem becomes monstrous, destroy target permanent.

Roll a d20. 1—9 | Tap all creatures your opponents control. 10—19 | Tap all creatures your opponents control. Those creatures don't untap during their controllers' next untap steps. 20 | Tap all creatures your opponents control. Those creatures don't untap during their controllers' next untap steps. Until your next turn, creatures your opponents control enter the battlefield tapped.

Choose one — • Counter target artifact or enchantment spell. If a spell is countered this way, exile it instead of putting it into its owner's graveyard. • Counter target activated or triggered ability.

Siege Monster — When Earth-Cult Elemental enters the battlefield, roll a d20. 1—9 | Each player sacrifices a permanent. 10—19 | Each opponent sacrifices a permanent. 20 | Each opponent sacrifices two permanents.

Farideh's Fireball deals 5 damage to target creature or planeswalker. Roll a d20. 1—9 | Farideh's Fireball deals 2 damage to each player. 10—20 | Farideh's Fireball deals 2 damage to each opponent.

Exile target spell, then roll a d20 and add that spell's mana value. 1—14 | You may cast the exiled card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. 15+ | You may cast the exiled card without paying its mana cost for as long as it remains exiled.

Choose one — • Counter target noncreature spell unless its controller pays {2}. • Izzet Charm deals 2 damage to target creature. • Draw two cards, then discard two cards.

Counter target noncreature spell.

Choose target creature an opponent controls, then roll a d20. 1—9 | Return it to its owner's hand. 10—19 | Its owner puts it on the top or bottom of their library. 20 | Gain control of it until the end of your next turn.

Roll two d12 and choose one result. Reckless Endeavor deals damage equal to that result to each creature. Then create a number of Treasure tokens equal to the other result.

Flash Cone of Cold — When Scion of Stygia enters the battlefield, choose target creature an opponent controls, then roll a d20. 1—9 | Tap that creature. 10—20 | Tap that creature. It doesn't untap during its controller's next untap step.

Roll three six-sided dice. For each different result, create a 1/1 white Clown Robot artifact creature token.

Whenever you roll one or more dice, create a 1/1 blue Faerie Dragon creature token with flying.