USS Albacore

Submerge (This creature can't be blocked except by
creatures with submerge.)

{1}{w}, {t}: Exile USS Albacore, then return her to
the battlefield as an aura enchantment with
"Enchant creature" and "Enchanted creature can't
attack or block. When the enchanted creature dies,
return USS Albacore to battlefield under her
owner's control as a creature."

“It is bullying time!”