Battle at the Mage-Rings

Forgotten (Cast this card only from your graveyard. As it resolves, put it into your hand.)
Each opponent loses 5 life and sacrifices a creature they control.
{w}{b}: Discard Battle at the Mage-Rings.
"Ral Zarek will not best me. Tibalt will not get past me. Chandra, stay behind me."
--Sora Beleren