Devoted Combo wants to chain Devoted Druid and Delighted Halfling mana into Green Sun's Zenith/Nature's Rhythm tutors and dump everything into Craterhoof Behemoth for lethal; Cursed Totem turns off Devoted Druid's untap ability, directly breaking their core combo engine. Grafdigger's Cage stops Green Sun's Zenith and Nature's Rhythm from putting creatures onto the battlefield from the library, and also stops Nature's Rhythm from being cast from the graveyard with harmonize. Trinisphere taxes their cheap spells, so mana creatures like Devoted Druid, Delighted Halfling and Badgermole Cub each cost three mana, slowing their explosive starts, while Soulless Jailer adds a 0/4 blocker and stops Tyvar, Jubilant Brawler's -2 from returning creatures from the graveyard to the battlefield. Giant's Boulder, Warping Wail, and extra Dismember copies are too slow or low-impact since this matchup is about denying their engine, not racing or killing small creatures.