This combo potential is also available in Commander, and based on how little Cadaverous Bloom is played, its going largely untapped
What really has players talking here, however, is the cards artwork
Remove Enchantments will always have at least three effects: All enchantments you own and control will be returned to your hand All other Enchantments you control will be destroyed (maybe a bit narrow, but if you have somehow overtaken one of your opponents Copy Artifacted creatures, for example via Preacher, it will now be destroyed) All Auras you dont own, attached to creatures you control, will be destroyed So far so good
For example, during a The Lord of the Rings: Tales of Middle-earth Limited event, you can't add Nazgl from your personal collection, no matter how much Sauron might want you to
From there, your opponent will have to deal with a 6/6 creature that spawns Lightning Helixes