Azeworli - Old Treeling

+2: Until your next upkeep, whenever a player casts a spell you may place a 1/1 sapling token on the battlefield under your control
+1: Until your next upkeep, whenever a creature you control dies you gain 1 life.
-7: Until your next upkeep, when you tap a land for mana it produces a second mana of the same type.