Roots of Yggdrasil

Roots of Yggdrasil enters the battlefield tapped.
{t}: Add one mana of any color.
Exile Roots of Yggdrasil, lose 20 life:
Choose one—
•Create a 10/10 green Treefolk creature token
with trample and reach.
•Gain 10 life and draw 10 cards.
•Exile all cards from target player's graveyard,
hand, and library.