edhseer Commander synergy, explained
Legendary Creature — Mutant Villain
Mana cost: {2}{B/R}
At the beginning of your first main phase, you may discard a card.
triggered —
When you do, target creature can't block this turn.
triggered — restricts attacking or blocking
Whenever a creature an opponent controls dies, Shriek deals 1 damage to that player.
triggered — deals 1 damage
Causes: discard a card, anything deals noncombat damage.
Cares about: a creature dies.
a Villain deals combat damage — 133 cards in Shriek's colors can cause this (Shriek is one).
a Villain enters the battlefield — 144 cards in Shriek's colors can cause this (Shriek is one).
When Shriek, Treblemaker enters:
a card is discarded — 1,069 cards in Shriek's colors can cause this (Shriek is one).
When Shriek, Treblemaker makes a player discard a card:
31 other cards care about it too. These are the ones with the most connections.
a creature dies — 1,676 cards in Shriek's colors can cause this.
1,670 other cards cause it too. These are the ones with the most connections.
anything deals noncombat damage — 2,124 cards in Shriek's colors can cause this (Shriek is one).
When Shriek, Treblemaker deals noncombat damage:
32 other cards care about it too. These are the ones with the most connections.
life is lost — 2,457 cards in Shriek's colors can cause this (Shriek is one).
When Shriek, Treblemaker makes a player lose life:
26 other cards care about it too. These are the ones with the most connections.
a card in a graveyard — 3,858 cards in Shriek's colors can cause this (Shriek is one).
170 other cards care about it too. These are the ones with the most connections.
anything goes to a graveyard — 3,858 cards in Shriek's colors can cause this (Shriek is one).
When a card hits the graveyard thanks to Shriek, Treblemaker:
3 other cards care about it too. These are the ones with the most connections.
a creature attacks — 6,499 cards in Shriek's colors can cause this (Shriek is one).
When Shriek, Treblemaker attacks:
89 other cards care about it too. These are the ones with the most connections.
a creature blocks — 6,499 cards in Shriek's colors can cause this (Shriek is one).
13 other cards care about it too. These are the ones with the most connections.
anything attacks — 6,499 cards in Shriek's colors can cause this (Shriek is one).
When Shriek, Treblemaker attacks:
39 other cards care about it too. These are the ones with the most connections.
a creature enters the battlefield — 7,209 cards in Shriek's colors can cause this (Shriek is one).
When Shriek, Treblemaker enters:
112 other cards care about it too. These are the ones with the most connections.