Ego's Seed

{t}: Add one mana of any color.
{1},{t}: Search your library for a card named
Ego's Seed, reveal it, put it into your hand, then shuffle your library.
{1},{t}: Put an expansion counter on target land.
{w}{u}{b}{r}{g},{t}: Exile all cards you control named
Ego's Seed. Destroy each land with an expansion counter on it. Create a 2/2 green Tendril creature
token with vigilance, trample, and haste for each
land destroyed this way.