Toxin, Symbiotic Slinger

+1: Create a 1/1 blue and red Symbiotic Tendril creature token with Defender and "Whenever this creature is dealt damage, you may draw a card."
-2: Scry 2, then Toxin, Symbiotic Slinger deals damage to any target equal to the number of cards put on the bottom of your library this turn.
-7: You get an emblem with "Whenever you cast an instant or sorcery spell, you may scry X, where X is the converted mana cost of the spell."