Exquisite Invention is a combo deck in Izzet colours leveraging on the power of Artifacts to generate the mana and tokens needed, copying spells to create tokens of bigger Creatures, and lastly to multiply them with Brudiclad, Telchor Engineers ability
I've built decks before with unintentional combos in them, and if you steal a way to copy spells and cast an extra-turn spell, you can go for it
Two-Color Gearhulks These are all nice additions in decks that can cast them, but theyre somewhat worse than the original gearhulks just because of the colored restrictions
Everyones tolerance for play is different, making the damaged lottery even more complicated
And while theres no place for it in modern decks (if you really want to gain life per turn, there are better ways to do it), its an interesting bit of MTG history behind it so much so that Wizards reprinted it in the Brothers War: Retro Artifacts set