edhseer Commander synergy, explained
Instant — Arcane
Mana cost: {3}{R}
Each time target permanent would deal damage to a permanent or player this turn, it deals double that damage to that permanent or player instead.
on-cast — doubles the damage
Splice onto Arcane {2}{R}{R}
Causes: double permanent .
Cares about: nothing.
an instant is cast — 3,931 cards in the game can cause this (Overblaze is one).
When Overblaze 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 (Overblaze is one).
When Overblaze is cast:
5 other cards care about it too. These are the ones with the most connections.