mtg.wtf

First strike, vigilance
Akiri, Line-Slinger gets +1/+0 for each artifact you control.
Partner

Whenever you attack, up to one target attacking creature can't be blocked this turn. At the beginning of the next end step, return that creature to its owner's hand. If you do, each opponent loses 2 life.

Whenever you attack, up to one target attacking creature can't be blocked this turn. At the beginning of the next end step, return that creature to its owner's hand. If you do, create a 1/1 white Soldier creature token.

Whenever you attack, up to one target attacking creature can't be blocked this turn. At the beginning of the next end step, return that creature to its owner's hand. If you do, it perpetually gets +1/+1.

Whenever you attack, up to one target attacking creature can't be blocked this turn. At the beginning of the next end step, return that creature to its owner's hand. If you do, create a Treasure token.

Whenever you attack, up to one target attacking creature can't be blocked this turn. At the beginning of the next end step, return that creature to its owner's hand. If you do, a creature of your choice an opponent controls perpetually gets -1/-0.

Haste
Whenever Ambergris, Agent of Balance attacks, you may discard your hand and draw two cards. When you do, put X +1/+1 counters on another target creature you control, where X is the number of cards you've discarded this turn.

Haste
Whenever Ambergris, Agent of Destruction attacks, you may discard your hand and draw two cards. If you do, Ambergris deals X damage to each opponent, where X is the number of cards you've discarded this turn.

Haste
Whenever Ambergris, Agent of Law attacks, you may discard your hand and draw two cards. If you do, other creatures you control get +X/+X until end of turn, where X is the number of cards you've discarded this turn.

Haste
Whenever Ambergris, Agent of Progress attacks, you may discard your hand and draw three cards.

Haste
Whenever Ambergris, Agent of Tyranny attacks, you may discard your hand and draw two cards. When you do, target creature an opponent controls gets -X/-X until end of turn, where X is the number of cards you've discarded this turn.

Target player draws three cards.

Eminence — At the beginning of combat on your turn, if Arahbo, Roar of the World is in the command zone or on the battlefield, another target Cat you control gets +3/+3 until end of turn.
Whenever another Cat you control attacks, you may pay {1}{G}{W}. If you do, it gains trample and gets +X/+X until end of turn, where X is its power.

Mutate {5}{U}
Whenever this creature mutates, tap up to X target creatures, where X is the number of times this creature has mutated. Those creatures don't untap during their controller's next untap step.

At the beginning of combat on your turn, you may attach any number of Auras and Equipment you control to target permanent or player.
Partner

As long as you've discarded a card this turn, you may pay {B/R} to cast this spell.
When Asmoranomardicadaistinaculdacar enters the battlefield, you may search your library for a card named The Underworld Cookbook, reveal it, put it into your hand, then shuffle.
Sacrifice two Foods: Target creature deals 6 damage to itself.

Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players discard cards and sacrifice creatures the same way.

Instant and sorcery spells you cast cost {1} less to cast.
Whenever a spell or ability you control counters a spell, you may draw a card. If you do, discard a card.

{T}, Sacrifice Black Lotus: Add three mana of any one color.

Draw three cards, then put two cards from your hand on top of your library in any order.

When Breya, Etherium Shaper enters the battlefield, create two 1/1 blue Thopter artifact creature tokens with flying.
{2}, Sacrifice two artifacts: Choose one —
• Breya deals 3 damage to target player or planeswalker.
• Target creature gets -4/-4 until end of turn.
• You gain 5 life.

Chalice of the Void enters the battlefield with X charge counters on it.
Whenever a player casts a spell with mana value equal to the number of charge counters on Chalice of the Void, counter that spell.

Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add {C}.

Choose a card name. Exile the top six cards of your library, then reveal cards from the top of your library until you reveal a card with the chosen name. Put that card into your hand and exile all other cards revealed this way.

Search your library for a card, put that card into your hand, then shuffle.