Iridia, the Majestic Drake

Iridia has deathtouch, double strike, flying, haste, hexproof, indestructible, lifelink,
trample and vigilance as long as you control
at least one each of a basic Forest, Island, Mountain, Island, and Swamp.
Iridia's power and toughness are each equal
to the number of basic lands you control
with different names