Galazeth Prismari takes Treasures (and other artifacts) a step further by letting them act as permanent mana rocks for instants and sorceries, both of which receive a lot of support from cards in the Izzet card pool
You might need more counterspells
A player can also lose if, after their active Pokmon is defeated, there are no benched Pokmon to replace it, or if a player's deck is emptied and they fail to draw a card at the beginning of their turn
This synergizes in impressive fashion with its triggered ability, allowing its controller to pay two mana to provide a creature with double strike until the end of the turn whenever they cast a noncreature spell
Second, it shares the quality that I like about Zur's Weirding in that it cries to have a deck built around it but doesn't tell you exactly what to do with it
Any self-respecting lifegain deck should have a way to gain 7 life in the first three turns easily