edhseer Commander synergy, explained
Instant — Arcane
Mana cost: {2}{R}
Return any number of Mountains you control to their owner's hand. Barrel Down Sokenzan deals damage to target creature equal to twice the number of Mountains returned this way.
on-cast — bounce
on-cast — deals damage
Causes: a Mountain land leaves the battlefield, a creature deals noncombat damage.
Cares about: nothing.
anything deals noncombat damage — 3,068 cards in the game can cause this (Barrel Down Sokenzan is one).
When Barrel Down Sokenzan deals noncombat damage:
36 other cards care about it too. These are the ones with the most connections.
an instant is cast — 3,931 cards in the game can cause this (Barrel Down Sokenzan is one).
When Barrel Down Sokenzan is cast:
427 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 (Barrel Down Sokenzan is one).
When a creature is dealt damage thanks to Barrel Down Sokenzan:
17 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 (Barrel Down Sokenzan is one).
When Barrel Down Sokenzan is cast:
5 other cards care about it too. These are the ones with the most connections.