The Jolly Balloon Man

Haste
1, {t} : Create a token that's a copy of another target creature you control, except it's a 1/1 red Balloon creature in addition to its other colors and types and it has flying and haste. Sacrifice it at the beginning of the next end step. Activate only as a sorcery.

“I'm every nightmare you ever had. I’m your worst dream come true.” pennywise the dancing clown.