edhseer Commander synergy, explained
Sorcery
Mana cost: {3}{R}
Gain control of target artifact or creature until end of turn. Untap it. It gains haste until end of turn. Create a tapped Powerstone token.
on-cast —
on-cast — untaps a permanent
on-cast — grants haste
on-cast — makes a token
Causes: take control of an artifact, take control of a creature, untap an artifact, untap a creature, create a Powerstone artifact token, put a Powerstone artifact token onto the battlefield.
Cares about: nothing.
a creature untaps — 519 cards in the game can cause this (Sibling Rivalry is one).
a token enters the battlefield — 3,710 cards in the game can cause this (Sibling Rivalry is one).
When a Powerstone enters thanks to Sibling Rivalry:
3 other cards care about it too. These are the ones with the most connections.
a token is created — 3,711 cards in the game can cause this (Sibling Rivalry is one).
When Sibling Rivalry makes a Powerstone token:
17 other cards care about it too. These are the ones with the most connections.
a sorcery is cast — 3,720 cards in the game can cause this (Sibling Rivalry is one).
When Sibling Rivalry is cast:
424 other cards care about it too. These are the ones with the most connections.
an artifact enters the battlefield — 4,643 cards in the game can cause this (Sibling Rivalry is one).
When a Powerstone enters thanks to Sibling Rivalry:
55 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 (Sibling Rivalry is one).
When a Powerstone enters thanks to Sibling Rivalry:
34 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 (Sibling Rivalry is one).
When Sibling Rivalry is cast:
5 other cards care about it too. These are the ones with the most connections.