Token Doubler

Cards whose static replacement effect changes a token-creation event to put extra tokens onto the battlefield instead. Doubling Season and Parallel Lives double every token you'd create; Mondrak, Glory Dominus and Adrix and Nev, Twincasters double specific subsets; Primal Vigor doubles symmetrically for all players. Also covers one-shot or activated mass-copy effects in the same vein, like Second Harvest and Rhys the Redeemed's activated ability, which copy every token you already control. Distinct from tokens.creature_token_maker, which produces tokens from scratch rather than multiplying existing creation events, and from tokens.populate, which copies a single target token. Cards that merely make additional tokens of a different type alongside their normal output are not doublers.