Grand Zeno
Grand Zeno (全王 Zen’ō, lit. "King of All"), is the supreme ruler of all the Multiverse, and its by far most powerful being. Since the events of the "Future" Trunks Saga, Zeno co-rules jointly with his future counterpart.
At some point in time, Zeno destroyed 6 of the then-existing 18 universes. In the manga, Zeno held an All Universe Hide and Seek Tournament, but when Beerus hid and fell asleep for fifty years during the tournament, it had to be cancelled. Zeno, who was enjoying the event, became furious and had to be calmed down by the gods from the 11 universes.