Hidden Immunity Idol

This spell costs {x} more to cast, where X is the
number of opponents you have.
When Immunity Idol enters the battlefield,
starting with you, each player votes for a
nontoken creature the opponent to your left
controls. The creature with the most votes is
exiled. If the vote is tied, the creature voted
for by their controller is exiled. Repeat this
process for each other opponent. When
Immunity Idol leaves the battlefield, repeat
the process above for one of your creatures.