Grothel, Lord of Burning Sap

Grow - If your library has 30 or less cards, you
may cast Grothel from outside the game.
Protection from non-treelords.
{r}{g}: Put a sap counter on target creature.
Whenever a creature becomes tapped deal one
damage to it for each sap counter in it
When Grothel dies, shuffle him into his owners
library.