Bob Ross, Master of Tree

+1: Paint 1 (Create a 1/1 Treant token, then give ALL Treants +X/+X)
-X: Paint X (Create a 1/1 Treant token, then give ALL Treants +X/+X)
-20: Create 3 1/1 Treant tokens, Then transform all Treants into 20/20 Ancient Treant tokens