If you gain or lose an amount of life "for each" of something, that life is gained or lost as one event and Wax-Wane Witness's last ability triggers only once
Both will permanently provide a steady stream of cards to cast, whether its a grip for a limited window or one at time forever
Creature - Demon Gale, Waterdeep Prodigy Whenever you cast an instant or sorcery spell from your hand, you may cast up to one target card of the other type from your graveyard
Flip the card and those loose strokes coalesce into Ifrit, Warden of Inferno himself: A tower of obsidian muscle and fissures of living fire
It allows you to cheat on mana in a big way that can swing the game
Stellar designs that assign power in new places are the rule rather than the exception in this set, and the deckbuilding possibilities on Day 1 have felt positively endless