edhseer Commander synergy, explained
Legendary Creature — Tyranid
Mana cost: {3}{G}{U}{R}
The Swarmlord enters with two +1/+1 counters on it for each time you've cast your commander from the command zone this game.
static — arrives with counters
Whenever a creature you control with a counter on it dies, draw a card.
triggered — draws you 1 card
Causes: put a counter on anything, draw a card.
Cares about: a creature dies.
hits creature — 1,370 cards in The Swarmlord's colors can cause this.
15 other cards care about it too. These are the ones with the most connections.
a Tyranid deals combat damage — 71 cards in The Swarmlord's colors can cause this (The Swarmlord is one).
a card is drawn — 2,413 cards in The Swarmlord's colors can cause this (The Swarmlord is one).
When The Swarmlord makes a player draw a card:
36 other cards care about it too. These are the ones with the most connections.
anything gets a counter — 2,482 cards in The Swarmlord's colors can cause this (The Swarmlord is one).
6 other cards care about it too. These are the ones with the most connections.
a creature attacks — 9,684 cards in The Swarmlord's colors can cause this (The Swarmlord is one).
When The Swarmlord attacks:
96 other cards care about it too. These are the ones with the most connections.
anything attacks — 9,684 cards in The Swarmlord's colors can cause this (The Swarmlord is one).
When The Swarmlord attacks:
41 other cards care about it too. These are the ones with the most connections.
a creature blocks — 9,684 cards in The Swarmlord's colors can cause this (The Swarmlord is one).
When The Swarmlord blocks:
4 other cards care about it too. These are the ones with the most connections.
a creature is cast — 9,731 cards in The Swarmlord's colors can cause this (The Swarmlord is one).
63 other cards care about it too. These are the ones with the most connections.
a creature enters the battlefield — 10,588 cards in The Swarmlord's colors can cause this (The Swarmlord is one).
When The Swarmlord enters:
165 other cards care about it too. These are the ones with the most connections.