The Grand Tent

Cumulative Upkeep {1}
Spells cost {2} more to cast.
Whenever another permanent enters the battlefield, it gains "At the beginning of your upkeep, exile this permanent unless you pay {1}."
When The Grand Tent leaves the battlefield, return all cards exiled with it to their owners' hands.
The best performance you'll see all night is the man
out front who convinced you to pay.