Asriel Dreemurr

Hexproof, Indestructible, Reach.
To summon this card, you have
to discard at least 5 Monsters
and a card named Omega Flowey.
{10}: You gain control from all of target opponent
permanents except for plainswalkers.
{x}: Put X damage counters on target creature.
If there isn't any creature on target opponent,
then do X damage to that opponent instead.