edhseer Commander synergy, explained
Instant
Mana cost: {W}
You and permanents you control gain hexproof until end of turn. Prevent all damage that black and/or red sources would deal to creatures you control this turn.
on-cast — grants a keyword
on-cast —
Causes: prevented creature .
Cares about: nothing.
damage is prevented — 568 cards in the game can cause this (Surge of Salvation is one).
When a creature has damage prevented thanks to Surge of Salvation:
an instant is cast — 3,931 cards in the game can cause this (Surge of Salvation is one).
When Surge of Salvation is cast:
427 other cards care about it too. These are the ones with the most connections.
anything is cast — 31,128 cards in the game can cause this (Surge of Salvation is one).
When Surge of Salvation is cast:
5 other cards care about it too. These are the ones with the most connections.