Biolume Egg
Creature — Serpent Egg
Defender When Biolume Egg enters the battlefield, scry 2. When you sacrifice Biolume Egg, return it to the battlefield transformed under its owner's control at the beginning of the next end step.
Biolume Serpent
Creature — Serpent
Sacrifice two Islands: Biolume Serpent can't be blocked this turn.