Icy Prison

Enchantment -
When Icy Prison enters the battlefield, exile target creature. <CR>
At the beginning of your upkeep, sacrifice Icy Prison unless any player pays {3}. <CR>
When Icy Prison leaves the battlefield, return the exiled creature to the battlefield under its owner's control.

Enchantment -
When Icy Prison enters the battlefield, exile target creature. <CR>
At the beginning of your upkeep, sacrifice Icy Prison unless any player pays {3}. <CR>
When Icy Prison leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Enchantment -
When Icy Prison comes into play, remove target creature from the game. <CR>
At the beginning of your upkeep, sacrifice Icy Prison unless any player pays {3}. <CR>
When Icy Prison leaves play, return the removed creature to play under its owner's control.

Enchantment -
When Icy Prison enters the battlefield, exile target creature. <CR>
At the beginning of your upkeep, sacrifice Icy Prison unless any player pays {3}. <CR>
When Icy Prison leaves the battlefield, return the exiled creature to the battlefield under its owner's control.