The Nightmare looks great at reanimating mid-sized creatures and it can feel like an engine just like Recurring Nightmare can, especially if youre trying to bring back creatures with powerful ETB abilities, like Grief
While I'd like the game to be as accessible as possible, even on a tournament level, you shouldn't be able to build a $2,000 deck with fake cards and then expect Wizards to offer you prize money for playing its game
Alternate frames are showcase, borderless, or extended art
If removal is too expensive or awkward to accomplish that task, then the format rewards board presence or raw card advantage
Chandra at least solves that
So you can turn any discarded and now exiled artifact into a free beater copy, like The One Ring for card flow or something similar like Darksteel Forge to make them indestructible