edhseer Commander synergy, explained
Battle — Siege // Creature — Angel Knight
Mana cost: {2}{W}{U}
(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, return up to one target creature to its owner's hand.
triggered — bounce
Flying
Vertex Paladin's power and toughness are each equal to the number of creatures you control.
static — makes your creatures bigger
Causes: a creature leaves the battlefield.
Cares about: nothing.
a battle enters the battlefield — 81 cards in the game can cause this (Invasion of Xerex is one).
When Invasion of Xerex // Vertex Paladin enters:
a battle is cast — 100 cards in the game can cause this (Invasion of Xerex is one).
When Invasion of Xerex // Vertex Paladin is cast:
235 other cards care about it too. These are the ones with the most connections.
a nontoken creature leaves the battlefield — 4,133 cards in the game can cause this (Invasion of Xerex is one).
3 other cards care about it too. These are the ones with the most connections.
a creature leaves the battlefield — 4,238 cards in the game can cause this (Invasion of Xerex is one).
When a creature leaves the battlefield thanks to Invasion of Xerex // Vertex Paladin:
25 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 (Invasion of Xerex is one).
22 other cards care about it too. These are the ones with the most connections.