Ceremorphosis

Enchant creature.
When Ceremorphosis come to play, you and the enchanted creature take 2 damage each and then
it becomes a Illithid over it's original type. The enchanted creature has Swampwalk, Lifelink, Deathtouch and protection from blue and black.
Ceremorphosis is the dread ritual to ascend from a
simple mortal to one with the Elder Brains.