edhseer Commander synergy, explained
Legendary Creature — Human Rogue Villain
Mana cost: {3}{B}{B}
When Black Cat enters, look at the top nine cards of target opponent's library, exile two of them face down, then put the rest on the bottom of their library in a random order. You may play the exiled cards for as long as they remain exiled. Mana of any type can be spent to cast spells this way.
triggered —
Causes: exile a card.
Cares about: nothing.
a Villain enters the battlefield — 99 cards in Black Cat's colors can cause this (Black Cat is one).
When Black Cat, Cunning Thief enters:
a Rogue creature enters the battlefield — 200 cards in Black Cat's colors can cause this (Black Cat is one).
a Rogue enters the battlefield — 202 cards in Black Cat's colors can cause this (Black Cat is one).
a creature attacks — 3,478 cards in Black Cat's colors can cause this (Black Cat is one).
When Black Cat, Cunning Thief attacks:
45 other cards care about it too. These are the ones with the most connections.
anything attacks — 3,478 cards in Black Cat's colors can cause this (Black Cat is one).
When Black Cat, Cunning Thief attacks:
8 other cards care about it too. These are the ones with the most connections.
a creature blocks — 3,478 cards in Black Cat's colors can cause this (Black Cat is one).
When Black Cat, Cunning Thief blocks:
3 other cards care about it too. These are the ones with the most connections.
a creature deals combat damage — 3,478 cards in Black Cat's colors can cause this (Black Cat is one).
62 other cards care about it too. These are the ones with the most connections.
a creature is cast — 3,493 cards in Black Cat's colors can cause this (Black Cat is one).
When Black Cat, Cunning Thief is cast:
8 other cards care about it too. These are the ones with the most connections.
a nontoken creature enters the battlefield — 3,680 cards in Black Cat's colors can cause this (Black Cat is one).
a creature enters the battlefield — 3,967 cards in Black Cat's colors can cause this (Black Cat is one).
When Black Cat, Cunning Thief enters:
38 other cards care about it too. These are the ones with the most connections.