edhseer Commander synergy, explained
Creature — Vampire Berserker
Mana cost: {2}{R}
Whenever this creature deals combat damage to a player, put a +1/+1 counter on it.
triggered — puts a counter on it
Madness {1}{R}
Causes: put a counter on anything.
Cares about: nothing.
a Berserker attacks — 214 cards in the game can cause this (Bloodmad Vampire is one).
a Vampire attacks — 484 cards in the game can cause this (Bloodmad Vampire is one).
When Bloodmad Vampire attacks:
a nontoken Vampire attacks — 484 cards in the game can cause this (Bloodmad Vampire is one).
a Vampire creature is cast — 484 cards in the game can cause this (Bloodmad Vampire is one).
a Vampire deals combat damage — 484 cards in the game can cause this (Bloodmad Vampire is one).
When Bloodmad Vampire deals combat damage:
a Vampire enters the battlefield — 500 cards in the game can cause this (Bloodmad Vampire is one).
When Bloodmad Vampire enters:
a creature gets a counter — 2,691 cards in the game can cause this (Bloodmad Vampire is one).
When Bloodmad Vampire gets a counter:
33 other cards care about it too. These are the ones with the most connections.
anything gets a counter — 4,415 cards in the game can cause this (Bloodmad Vampire is one).
8 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 (Bloodmad Vampire is one).
When Bloodmad Vampire attacks:
113 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 (Bloodmad Vampire is one).
When Bloodmad Vampire attacks:
180 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 (Bloodmad Vampire is one).
When Bloodmad Vampire blocks:
23 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 (Bloodmad Vampire is one).
When Bloodmad Vampire attacks:
a creature enters the battlefield — 19,800 cards in the game can cause this (Bloodmad Vampire is one).
When Bloodmad Vampire enters:
305 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 (Bloodmad Vampire is one).
41 other cards care about it too. These are the ones with the most connections.