Dragonshrine

Dragonshrine comes into play tapped unless you control both a mountain and a dragon.
{t}{3}{r}: Put an 0/2 Dragon Egg token into play,
with Defender and Vanishing 4.
When the last Vanishing token is removed from a Dragon Egg you control, exile it and place an
X/X Dragon token into play with flying, where
X is equal to the number of dragons you control.