edhseer Commander synergy, explained
Legendary Creature — Elder Demon
Mana cost: {4}{B}{B}
Flying, trample
When Demonlord Belzenlok enters, exile cards from the top of your library until you exile a nonland card, then put that card into your hand. If the card's mana value is 4 or greater, repeat this process. Demonlord Belzenlok deals 1 damage to you for each card put into your hand this way.
triggered —
triggered — deals damage
Causes: exile an artifact, exile a battle, exile a creature, exile an enchantment, exile an instant, exile a planeswalker, exile a sorcery, anything deals noncombat damage.
Cares about: nothing.
a planeswalker is exiled — 55 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
a Demon enters the battlefield — 170 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
a nontoken artifact is exiled — 71 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
When an artifact is exiled thanks to Demonlord Belzenlok:
an artifact is exiled — 72 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
1 other card cares about it too. These are the ones with the most connections.
a creature is exiled — 275 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
2 other cards care about it too. These are the ones with the most connections.
anything deals noncombat damage — 388 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
life is lost — 1,256 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
When Demonlord Belzenlok makes a player lose life:
17 other cards care about it too. These are the ones with the most connections.
a creature attacks — 3,478 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
When Demonlord Belzenlok attacks:
46 other cards care about it too. These are the ones with the most connections.
anything attacks — 3,478 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
When Demonlord Belzenlok attacks:
6 other cards care about it too. These are the ones with the most connections.
a creature blocks — 3,478 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
When Demonlord Belzenlok blocks:
3 other cards care about it too. These are the ones with the most connections.
a creature deals combat damage — 3,478 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
61 other cards care about it too. These are the ones with the most connections.
a creature is cast — 3,493 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
When Demonlord Belzenlok is cast:
8 other cards care about it too. These are the ones with the most connections.
a nontoken creature enters the battlefield — 3,680 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
a creature enters the battlefield — 3,967 cards in Demonlord Belzenlok's colors can cause this (Demonlord Belzenlok is one).
When Demonlord Belzenlok enters:
37 other cards care about it too. These are the ones with the most connections.