Criatura — Huevo serpiente
0 / 4
Defensor.
Cuando el Huevo biolumi entre al campo de batalla, adivina 2.
Cuando sacrifiques el Huevo biolumi, regrésalo al campo de batalla transformado bajo el control de su propietario al comienzo del próximo paso final.
Criatura — Serpiente
4 / 4
Sacrificar dos Islas: La Serpiente biolumi no puede ser bloqueada este turno.
If a permanent that isn't a double-faced card becomes a copy of Biolume Egg and then is sacrificed, that card can't be returned to the battlefield transformed. It will remain in the graveyard.
You can't sacrifice Biolume Egg unless another effect allows you to.
You may sacrifice any two lands with the subtype Island to activate Biolume Serpent's ability, even if they aren't basic or aren't named Island.