USS Barracuda

Islandwalk
{t}{u}Torpedo: Destroy Target Creature.
{t}{u}{u}Underwater Hunt: Destroy Target Island.
{u}{u}{u}Submerge: Submerged Counter on USS Barracuda. USS Barracuda cannot Attack or Defend, and also cannot be the Target of a Sorcery, Instant, or Enchantment while it has a submerged counter on it.
{u}{u}{u}Surface: Remove a Submerged Counter from USS Barracuda.