The high mana and equip cost also mean that, in most cases, Cloak is a highly telegraphed move , and most people will opt to run Greaves for the much better mana economy, or Boots for hexproof over shroud
It is a solid card advantage option for low-bracket or budget decks, however, and it provides another artifact on board for Depthshaker and friends
Last week, WotC unveiled a brand new Magic Arena format called Alchemy
Chromatic Lantern and Arcane Signet are going to be good rocks here, but I wouldn't play any signets or anything like that and I don't think we need bad three-mana rocks like Manalith or Basically Manalith (Darksteel Ingot)
Now there are some things you can do to make a package special
X spells are already excellent in Gladiator, and this has ex-cellent potential to put more logs on the fire