Letting players theoretically get a powerful card like Emrakul, The Promised End out in turn 4 saw Aetherworks Marvel banned
The auras/equipment strategy has been around a long time and I would be critical if thats all the deck had to offer
Planeswalkers tend to get more immediate value regardless and are generally harder and costlier to kill with removal
Legions to Ashes also targets any non-land, so not Volrath's Stronghold or Gaea's Cradle, but anything else
Reusing ETB abilities, resetting planeswalkers, and untapping mana rocks with ease while also being able to protect itself makes this card into a powerhouse if your deck is built to exploit it
It was before Mistform Ultimus had been made, and it was 1/1, artifact, and shapeshifter, with every creature type