-REDACTED-, the First

Glitch (Cannot be harmed by spells, abilities,
or attack damage)
{t}, Destroy target creature and target land
you control.
{x}{t}, Exile X target creatures and X target
lands, where X is the amount of creatures
and lands in your graveyard.
"It was me! I killed them! I killed them all!
Please, just end me, and let the universe
heal..."