Whip Vine

Whip Vine

Creature - Plant Wall | Power/Toughness: 1 / 4 (CMC 3)
Defender; reach (This creature can block creatures with flying.)
You may choose not to untap Whip Vine during your untap step.
: Tap target creature with flying blocked by Whip Vine. That creature doesn't untap during its controller's untap step for as long as Whip Vine remains tapped.