edhseer Commander synergy, explained
Artifact Creature — Phyrexian Construct
Mana cost: {2}{B}{R}
Whenever you cast an instant or sorcery spell that targets only a single nonland permanent an opponent controls, if another opponent controls one or more nonland permanents that spell could target, choose one of those permanents. Copy that spell. The copy targets the chosen permanent.
triggered — copies a spell
Regenerate this creature.
activated {1}{B} —
Causes: copy a spell, regenerate a creature.
Cares about: nothing.
a Phyrexian artifact is cast — 90 cards in the game can cause this (Exterminator Magmarch is one).
a spell is copied — 122 cards in the game can cause this (Exterminator Magmarch is one).
When Exterminator Magmarch is copied:
a Phyrexian attacks — 495 cards in the game can cause this (Exterminator Magmarch is one).
a nontoken Phyrexian enters the battlefield — 496 cards in the game can cause this (Exterminator Magmarch is one).
a Phyrexian enters the battlefield — 524 cards in the game can cause this (Exterminator Magmarch is one).
an artifact attacks — 1,243 cards in the game can cause this (Exterminator Magmarch is one).
When Exterminator Magmarch attacks:
an artifact deals combat damage — 1,243 cards in the game can cause this (Exterminator Magmarch is one).
When Exterminator Magmarch deals combat damage:
2 other cards care about it too. These are the ones with the most connections.
a nontoken artifact deals combat damage — 1,243 cards in the game can cause this (Exterminator Magmarch is one).
an artifact is cast — 3,683 cards in the game can cause this (Exterminator Magmarch is one).
When Exterminator Magmarch is cast:
271 other cards care about it too. These are the ones with the most connections.
a nontoken artifact enters the battlefield — 3,768 cards in the game can cause this (Exterminator Magmarch is one).
When Exterminator Magmarch enters:
an artifact enters the battlefield — 4,643 cards in the game can cause this (Exterminator Magmarch is one).
When Exterminator Magmarch enters:
56 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 (Exterminator Magmarch is one).
When Exterminator Magmarch attacks:
132 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 (Exterminator Magmarch is one).
When Exterminator Magmarch attacks:
197 other cards care about it too. These are the ones with the most connections.
a creature is cast — 18,010 cards in the game can cause this (Exterminator Magmarch is one).
90 other cards care about it too. These are the ones with the most connections.
a creature enters the battlefield — 19,800 cards in the game can cause this (Exterminator Magmarch is one).
When Exterminator Magmarch enters:
344 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 (Exterminator Magmarch is one).
68 other cards care about it too. These are the ones with the most connections.