Meirda, Web Mystic

+2: Create a 1/2 green and black spider creature token with reach.
-3: Meirda, Web Mystic deals damage equal to the number of spiders you control to target creature or planeswalker you don't control.
-X: Sacrifice X creatures, Scry twice X, then draw a card, you may cast a spell from your hand with converted mana cost X or less.