edhseer Commander synergy, explained
Legendary Creature — Rat Ninja
Mana cost: {4}{B}{B}
Ninjutsu {3}{B}{B}
Whenever Ink-Eyes deals combat damage to a player, you may put target creature card from that player's graveyard onto the battlefield under your control.
triggered — brings a card back
Regenerate Ink-Eyes.
activated {1}{B} —
Causes: put a creature onto the battlefield, a creature leaves a graveyard, regenerate anything.
Cares about: a creature in a graveyard.
a Rat attacks — 99 cards in Ink-Eyes's colors can cause this (Ink-Eyes is one).
a Rat enters the battlefield — 112 cards in Ink-Eyes's colors can cause this (Ink-Eyes is one).
1 other card cares about it too. These are the ones with the most connections.
a creature leaves a graveyard — 645 cards in Ink-Eyes's colors can cause this (Ink-Eyes is one).
8 other cards care about it too. These are the ones with the most connections.
a creature in a graveyard — 1,237 cards in Ink-Eyes's colors can cause this (Ink-Eyes is one).
1,232 other cards care about it too. These are the ones with the most connections.
a creature attacks — 3,478 cards in Ink-Eyes's colors can cause this (Ink-Eyes is one).
When Ink-Eyes, Servant of Oni attacks:
45 other cards care about it too. These are the ones with the most connections.
anything attacks — 3,478 cards in Ink-Eyes's colors can cause this (Ink-Eyes is one).
When Ink-Eyes, Servant of Oni attacks:
7 other cards care about it too. These are the ones with the most connections.
a creature blocks — 3,478 cards in Ink-Eyes's colors can cause this (Ink-Eyes is one).
When Ink-Eyes, Servant of Oni 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 Ink-Eyes's colors can cause this (Ink-Eyes is one).
61 other cards care about it too. These are the ones with the most connections.
a creature is cast — 3,493 cards in Ink-Eyes's colors can cause this (Ink-Eyes is one).
When Ink-Eyes, Servant of Oni 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 Ink-Eyes's colors can cause this (Ink-Eyes is one).
a creature enters the battlefield — 3,967 cards in Ink-Eyes's colors can cause this (Ink-Eyes is one).
36 other cards care about it too. These are the ones with the most connections.