You may choose not to untap Ice Floe during your untap step. {T}: Tap target creature without flying that's attacking you. It doesn't untap during its controller's untap step for as long as Ice Floe remains tapped.
Near Mint - $480
Lightly Played - $430
Moderately Played - $360
Heavily Played - $290
Damaged - $200
Near Mint Spanish - $480
Lightly Played Spanish - $430
Moderately Played Spanish - $360
Heavily Played Spanish - $290
Damaged Spanish - $200