Against certain decks, this is a brutal effect that can completely cripple an opponents playstyle

Doomsday: Out: 1x Shattering Spree, 1x Damping Sphere, 2x Fable of the Mirror-Breaker In: 2x Grafdiggers Cage, 2x Unlicensed Hearse Bazaar Decks: Out: 3x Maddening Hex, 1x Trinisphere, 1x Shattering Spree, 3x Damping Sphere, 1x Chalice of the Void, 1x Pyroblast In: 2x Alpine Moon, 3x Fury, 2x Grafdiggers Cage, 1x Pithing Needle, 2x Unlicensed Hearse Additionally, if you suspect they have Collector Ouphe: Out: 2x Pyroblast In: 2x Dead // Gone Oath of Druids: Out: 3x Damping Sphere, 1x Shattering Spree, 2x Fable of the Mirror-Breaker, 1x Legion Warboss In: 2x Alpine Moon, 2x Dead // Gone, 2x Grafdiggers Cage, 1x Pithing Needle Creature-Based (Humans, etc.): Out: 3x Pyroblast, 3x Maddening Hex In: 2x Dead 3x Fury, 1x Pithing Needle If you dont think the opponent has good activated effects, like if theyre Mono W Humans without Cathar Commando, you can board in Unlicensed Hearse instead of Pithing Needle
You need to constantly evaluate board states and anticipate hate cards
The PFP deemed that to be too powerful and worthy of a ban