When Brinelin, the Moon Kraken enters the battlefield or whenever you cast a spell with mana value 6 or greater, you may return target nonland permanent to its owner's hand. Partner (You can have two commanders if both have partner.)

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

Equipped creature has shroud. (It can't be the target of spells or abilities.) {U}{U}: Attach Neurok Stealthsuit to target creature you control. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

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

When Aethersnipe enters the battlefield, return target nonland permanent to its owner's hand. Evoke {1}{U}{U} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Trample When Ambush Krotiq enters the battlefield, return another creature you control to its owner's hand.

Reach, trample Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)

When Archaeomancer enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

Trample Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

Defender Evolve (Whenever a creature enters the battlefield under your control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

When Coiling Oracle enters the battlefield, reveal the top card of your library. If it's a land card, put it onto the battlefield. Otherwise, put that card into your hand.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

When Dawnhart Rejuvenator enters the battlefield, you gain 3 life. {T}: Add one mana of any color.

Reach (This creature can block creatures with flying.) Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

{T}: Add {G}{G}{G}. Forestcycling {2} ({2}, Discard this card: Search your library for a Forest card, reveal it, put it into your hand, then shuffle.)

{T}: Add {G}.

When Elvish Pioneer enters the battlefield, you may put a basic land card from your hand onto the battlefield tapped.

When Fierce Empath enters the battlefield, you may search your library for a creature card with mana value 6 or greater, reveal it, put it into your hand, then shuffle.

Floodchaser enters the battlefield with six +1/+1 counters on it. Floodchaser can't attack unless defending player controls an Island. {U}, Remove a +1/+1 counter from Floodchaser: Target land becomes an Island until end of turn.

{T}: Add {G}.

{T}: Add one mana of any color. If you control a creature with power 4 or greater, add two mana of any one color instead.

Landfall — Whenever a land enters the battlefield under your control, you gain 1 life.

Creature spells you cast with mana value 6 or greater cost {2} less to cast.

{T}: Add {G}.

When Llanowar Visionary enters the battlefield, draw a card. {T}: Add {G}.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.)

Ward {3} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {3}.) Channel — {2}{U}, Discard Mirrorshell Crab: Counter target spell or ability unless its controller pays {3}.

Flying, deathtouch

Flying When Peregrine Drake enters the battlefield, untap up to five lands.

When Ravenous Lindwurm enters the battlefield, you gain 4 life.

Sacrifice Sakura-Tribe Elder: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Scrapdiver Serpent can't be blocked as long as defending player controls an artifact.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Trample

{T}: Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

({G/P} can be paid with either {G} or 2 life.) Trample

Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents.) Ulamog's Crusher attacks each combat if able.

Flying Landfall — Whenever a land enters the battlefield under your control, Wave-Wing Elemental gets +2/+2 until end of turn.

Flash (You may cast this spell any time you could cast an instant.) Flying Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Enchant creature Enchanted creature can't be blocked. Whenever enchanted creature attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Enchant creature Enchanted creature can't attack or block, and its activated abilities can't be activated. When enchanted creature becomes the target of a spell or ability, destroy Ice Cage.

Enchant creature Enchanted creature gets +2/+0 and has trample. When Rancor is put into a graveyard from the battlefield, return Rancor to its owner's hand.

Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.) Enchanted creature has flying. (It can't be blocked except by creatures with flying or reach.) {U}: Return Shimmering Wings to its owner's hand.

Enchant creature Enchanted creature gets +1/+1 and has reach. (It can block creatures with flying.) Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Prevent all combat damage that would be dealt this turn. Fateful hour — If you have 5 or less life, tap all attacking creatures. Those creatures don't untap during their controller's next untap step.

Counter target spell.

Counter target instant spell.

Prevent all combat damage that would be dealt this turn.

Return target creature to its owner's hand. Ferocious — If you control a creature with power 4 or greater, you may draw a card. If you do, discard a card.

Draw two cards, then discard two cards. Untap up to three lands.

Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.

Draw a card. You may put a land card from your hand onto the battlefield.

Counter target spell unless its controller pays {3}.

Destroy target artifact or enchantment.

Counter target noncreature spell.

Target creature gets +1/+3 until end of turn. Put a reach counter on it. Untap it.

Return target creature to its owner's hand.

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

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Fertile Thicket enters the battlefield tapped. When Fertile Thicket enters the battlefield, you may look at the top five cards of your library. If you do, reveal up to one basic land card from among them, then put that card on top of your library and the rest on the bottom in any order. {T}: Add {G}.

({T}: Add {G}.)

Halimar Depths enters the battlefield tapped. When Halimar Depths enters the battlefield, look at the top three cards of your library, then put them back in any order. {T}: Add {U}.

({T}: Add {U}.)

Simic Growth Chamber enters the battlefield tapped. When Simic Growth Chamber enters the battlefield, return a land you control to its owner's hand. {T}: Add {G}{U}.

Simic Guildgate enters the battlefield tapped. {T}: Add {G} or {U}.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Kicker {3} (You may pay an additional {3} as you cast this spell.) Search your library for a basic land card, reveal it, put it into your hand, then shuffle. If this spell was kicked, search your library for two basic land cards instead of one.

For each creature, its controller sacrifices a permanent unless they pay {1}.

Tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step. Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

You may return two Islands you control to their owner's hand rather than pay this spell's mana cost. Draw two cards.

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

Until end of turn, target creature loses all abilities and becomes a green Snake with base power and toughness 1/1. Draw a card.