Geistwing Arcangel

Geistwing Arcangel is indestructible as long as
you control a land named "Serra's Landing."
Flying, vigilance, lifelink.
Whenever you gain life, you may discard a card.
If you do, draw a card and create a 1/1 black
and white Spirit creature token with lifelink.
"If you cease to be, so will me."