edhseer Commander synergy, explained
Battle — Siege // Creature — Elemental
Mana cost: {2}{R}{R}
(As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.)
When this Siege enters, it deals 3 damage to each creature and each planeswalker.
triggered — deals 3 damage
triggered — deals 3 damage
Ward—Pay 2 life.
Whenever you cast a spell, this creature deals 2 damage to each opponent.
triggered — deals 2 damage
Causes: a creature deals noncombat damage, a planeswalker deals noncombat damage, anything deals noncombat damage.
Cares about: a spell is cast.
a battle enters the battlefield — 81 cards in the game can cause this (Invasion of Karsus is one).
When Invasion of Karsus // Refraction Elemental enters:
a battle is cast — 100 cards in the game can cause this (Invasion of Karsus is one).
When Invasion of Karsus // Refraction Elemental is cast:
235 other cards care about it too. These are the ones with the most connections.
anything deals noncombat damage — 3,068 cards in the game can cause this (Invasion of Karsus is one).
When Invasion of Karsus // Refraction Elemental deals noncombat damage:
37 other cards care about it too. These are the ones with the most connections.
life is lost — 3,160 cards in the game can cause this (Invasion of Karsus is one).
When Invasion of Karsus // Refraction Elemental makes a player lose life:
46 other cards care about it too. These are the ones with the most connections.
a creature is dealt damage — 18,923 cards in the game can cause this (Invasion of Karsus is one).
When Invasion of Karsus // Refraction Elemental is dealt damage:
17 other cards care about it too. These are the ones with the most connections.
anything is dealt damage — 19,812 cards in the game can cause this (Invasion of Karsus is one).
When an opponent is dealt damage thanks to Invasion of Karsus // Refraction Elemental:
10 other cards care about it too. These are the ones with the most connections.