Mockery of Nature

Emerge is what turns a nine-mana disenchant-on-a-body into something castable: sacrifice a creature and the emerge cost drops by that creature's mana value, so feeding it a four-drop brings the spell down to for a 6/5 that blows up an artifact or enchantment on the way down. The cast trigger is where the design earns its keep. Because the disenchant fires "when you cast," not on resolution, it resolves even if the body itself eats a counterspell: the green half of the Eldrazi gets to answer a problem permanent whether or not the creature ever lands. That fold of board presence and removal into one tempo-positive play is the whole pitch. The cost is structural: the discount only materializes if you have a creature to give up, so the emerge math rewards a developed board you were already willing to spend down rather than a clean curve, and the disenchant trigger can still be answered the ordinary way, by sacrificing the targeted permanent in response. None of that undoes the appeal. It is the most utilitarian member of green's emerge package, less a finisher than a flexible release valve: when you have a spare body and a permanent you need gone, this turns both into a single play, and the answer half lands the moment you commit, not the moment the creature survives.