edhseer Commander synergy, explained
Legendary Creature — Elf Advisor
Mana cost: {2}{G}
Each other nontoken creature you control enters with an additional +1/+1 counter on it.
static — arrives with counters
Proliferate X times, where X is the number of nontoken creatures you control that entered this turn.
activated {1}, {T} — proliferates
Causes: put a counter on a nontoken creature, proliferate.
Cares about: a creature it applies enters with counters to.
an Elf attacks — 422 cards in Tromell's colors can cause this (Tromell is one).
When Tromell, Seymour's Butler attacks:
a nontoken Elf enters the battlefield — 425 cards in Tromell's colors can cause this (Tromell is one).
an Elf enters the battlefield — 440 cards in Tromell's colors can cause this (Tromell is one).
When Tromell, Seymour's Butler enters:
a creature gets a counter — 836 cards in Tromell's colors can cause this (Tromell is one).
15 other cards care about it too. These are the ones with the most connections.
anything gets a counter — 1,342 cards in Tromell's colors can cause this (Tromell is one).
4 other cards care about it too. These are the ones with the most connections.
a creature attacks — 3,620 cards in Tromell's colors can cause this (Tromell is one).
When Tromell, Seymour's Butler attacks:
169 other cards care about it too. These are the ones with the most connections.
anything attacks — 3,620 cards in Tromell's colors can cause this (Tromell is one).
When Tromell, Seymour's Butler attacks:
43 other cards care about it too. These are the ones with the most connections.
a creature blocks — 3,620 cards in Tromell's colors can cause this (Tromell is one).
When Tromell, Seymour's Butler blocks:
31 other cards care about it too. These are the ones with the most connections.
a creature is cast — 3,640 cards in Tromell's colors can cause this (Tromell is one).
When Tromell, Seymour's Butler is cast:
29 other cards care about it too. These are the ones with the most connections.
a nontoken creature enters the battlefield — 3,710 cards in Tromell's colors can cause this (Tromell is one).
When Tromell, Seymour's Butler enters:
9 other cards care about it too. These are the ones with the most connections.
a creature enters the battlefield — 4,064 cards in Tromell's colors can cause this (Tromell is one).
662 other cards care about it too. These are the ones with the most connections.