Multiversal High Council is a common Plane — Universia Beyondia card from Black Lotus Unknown Planechase (PUNK), collector number PLA017.
Universes Beyond spells you cast cost {1} less to cast. Each creature gets +1/+1 for each different Universe among permanents its controller controls. (Magic: The Gathering and D&D each count as a universe.) Whenever Chaos ensues, for each universe, return up to one target card from that Universe from your graveyard to your hand.