Sand Squid

Sand Squid

Creature - Squid Beast | Power/Toughness: 2 / 2 (CMC 4)
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
You may choose not to untap Sand Squid during your untap step.
: Tap target creature. That creature doesn't untap during its controller's untap step for as long as Sand Squid remains tapped.