An-Zerrin Cryptid

Flying,Lifelink
Homeland (When this creature enters the battlefield,
chose one listed land type you control. The creature
gains the noted ability.)
Mountain: gains {r}: this card becomes an
Enchantment- Aura, Enchant Land attached to a
land you control. Pay the same cost to reverse this.
Swamp: Gains Menace
Other: When the land is tapped, you gain 1
life and target opponent loses 1 life.
"Only a few Dragons still exist on Ulgrotha."