edhseer Commander synergy, explained
Creature — Phyrexian Horror
Mana cost: {2}{B}{B}
Menace
As an additional cost to cast black permanent spells, you may pay 2 life. Those spells cost {B} less to cast if you paid life this way. This effect reduces only the amount of black mana you pay.
static — costs {B} less
Whenever you cast a black permanent spell, target creature you control gets +1/+1 and gains menace until end of turn.
triggered — gives +1/+1
triggered — grants a keyword
Causes: nothing.
Cares about: an artifact is cast, a battle is cast, a creature is cast, an enchantment is cast, a planeswalker is cast, a creature it makes cheaper to cast, an artifact it makes cheaper to cast, an enchantment it makes cheaper to cast, a planeswalker it makes cheaper to cast, a battle it makes cheaper to cast.
cast a battle — 100 cards in the game can cause this.
92 other cards cause it too. These are the ones with the most connections.
cast a planeswalker — 361 cards in the game can cause this.
351 other cards cause it too. These are the ones with the most connections.
a Horror deals combat damage — 382 cards in the game can cause this (Defiler of Flesh is one).
a Phyrexian attacks — 495 cards in the game can cause this (Defiler of Flesh is one).
a nontoken Phyrexian enters the battlefield — 496 cards in the game can cause this (Defiler of Flesh is one).
a Phyrexian enters the battlefield — 524 cards in the game can cause this (Defiler of Flesh is one).
cast an enchantment — 3,673 cards in the game can cause this.
3,663 other cards cause it too. These are the ones with the most connections.
cast an artifact — 3,683 cards in the game can cause this.
3,673 other cards cause it too. These are the ones with the most connections.
an artifact it makes cheaper to cast — 4,531 cards in the game can cause this (Defiler of Flesh is one).
Defiler of Flesh reduces what:
4,525 other cards care about it too. These are the ones with the most connections.
anything attacks — 17,934 cards in the game can cause this (Defiler of Flesh is one).
When Defiler of Flesh attacks:
496 other cards care about it too. These are the ones with the most connections.
a creature attacks — 17,934 cards in the game can cause this (Defiler of Flesh is one).
When Defiler of Flesh attacks:
871 other cards care about it too. These are the ones with the most connections.
a creature blocks — 17,934 cards in the game can cause this (Defiler of Flesh is one).
When Defiler of Flesh blocks:
132 other cards care about it too. These are the ones with the most connections.
a nontoken creature attacks — 17,934 cards in the game can cause this (Defiler of Flesh is one).
When Defiler of Flesh attacks:
a creature it makes cheaper to cast — 19,392 cards in the game can cause this.
19,383 other cards care about it too. These are the ones with the most connections.
a creature it boosts — 19,392 cards in the game can cause this.
19,382 other cards cause it too. These are the ones with the most connections.
a creature it grants abilities to — 19,392 cards in the game can cause this.
19,387 other cards cause it too. These are the ones with the most connections.
a creature it applies speed increase to — 19,392 cards in the game can cause this.
19,391 other cards cause it too. These are the ones with the most connections.
a creature it applies extra combat to — 19,392 cards in the game can cause this.
19,391 other cards cause it too. These are the ones with the most connections.
a creature it grants types to — 19,392 cards in the game can cause this.
19,390 other cards cause it too. These are the ones with the most connections.
a creature enters the battlefield — 19,800 cards in the game can cause this (Defiler of Flesh is one).
When Defiler of Flesh enters:
3,031 other cards care about it too. These are the ones with the most connections.
anything enters the battlefield — 26,499 cards in the game can cause this (Defiler of Flesh is one).
688 other cards care about it too. These are the ones with the most connections.