Silverfang, Acolyte of Ul

At the beginning of your upkeep, roll a d20.
-If you rolled a 1 through 15, Silverfang, Acolyte of Ul deals 2 Damage to you
-If you rolled a 16 through 19, Silverfang, Acolyte of Ul deals 2 damage to a target and
you draw a card
-If you rolled a 20, transform Silverfang, Acolyte of Ul