CORE

{t}: Add {b} to your mana pool.
{1}{b}, {t}: This becomes an aura with: Enchanted creature gets +2/+2. Only activate this ability
anytime you could activate a sorcery.
{t}: This turns back into a land if it isn't already
one.
"In the CORE is an elevator directly to Asgore's
castle."
-Alphys