Colossal Gold Dragon

Flying, vigilance
When Colossal Gold Dragon enters the battlefield, you gain X life where X is equal to
the number of plains on the battlefield.
{w}{w}{t}: Create a 1/1 White Human Avatar
creature token that has indestructible.
When Colossal Gold Dragon dies, search your
library for a non-land permanent and put that
card in your hand. Then shuffle your library.