mtg standard black cards Fear of the Dark | Duskmourn: House of Horror | STANDARD: Mono-Black Aggro seems to

2025-06-06 If an effect refers to a card, spell, or permanent that has an Adventure, it won't find an instant or sorcery spell on the stack that's been cast as an Adventure

Alter sleeves are exactly that: alters on sleeves

A mana is still pretty cheap and the ability to do it multiple times makes it a far better late game engine with things like the Carrion Feeder or Skullclamp

Getting to self-wheel on EtB before flipping into a 9/9 that can fight something and generate you a decent chunk of mana, before flipping back to a self-wheel

I break his Standstill with a Cabal Therapy, naming Counterspell

Id argue each card there is a different unique print, like cards in multiple languages