The second is that this only works on the first one cast, so they can cast Brainstorm to dig for something and then cast what they drew
My opponent's never hit their mana dork when they start revealing cards, it's always the fatty creature that was never supposed to have haste to help balance it out
Combine this with some sort of hyper self-mill combo (Doomsday, Demonic Consultation) and land this 2-drop for an immediate alternate win
Making creature tokens isn't a bad effect, but the mana generation provided by treasure is much better for chaining together spells
Attack, die, rebuild, and outlast is your approach, bringing back the living machines over and over to out-grind your opponent
(It's an artifact with " , Sacrifice this token: Add one mana of any color.") Enchantment Color tag templates(None) Sphere of Safety Creatures can't attack you or planeswalkers you control unless their controller pays for each of those creatures, where X is the number of enchantments you control