1998 world champion mtg card Final Fortune (Ben Rubin) (SB) [World Championship Decks 1998] drawing engines to dig them out Recurring Nightmare - Brian Selden

If I were going to add in a damage doubler, I much prefer the enchantment versions like, Gratuitous Violence

Notably, paying life is the cost to activate the ability, so none of the triggers actually need to resolve

THE FINEST CARDS FOR PLAY AND DISPLAY Esteemed artists joined our roster of artists for FINAL FANTASY, and some of them created Double-faced cards

See rule 904, Archenemy. 314.2

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Each time Mirkwood Bats triggers, Ob Nixilis will draw you a card, and each time you play said card (from exile), Prosper will give you a Treasure token, which will provide two more damage, two further Ob Nixilis draws to work with, and one mana