There are some standouts for rarity-restricted Cubes like Inspiring Overseer, which is likely to be a Pauper Cube slam dunk, though for the purpose of my Top 10 lists I dont adjust for impact given restrictions given that the range of restrictions a person could have for their own Cube is infinite
So, based on that you know our Colossus friend here comes from the Ninth Edition core set (the symbol), and that he's a rare card (the gold color).More information about cards can be found in our giant-yet-easily-searchable card database Gatherer
Agatha of the Vile Cauldron Biomancer's Familiar Bladegraft Aspirant Blossoming Tortoise Convergence of Dominion Embalmer's Tools Forensic Gadgeteer Heartstone Lavinia of the Tenth Mutagen Man, Living Ooze Power Artifact Sam, Loyal Attendant The Dining Car Training Grounds Zirda, the Dawnwaker
The deck is so rigidly built around these mechanics that it feels hard to identify just one or two big upgrades to improve its power, and instead, you would need to chop and change a considerable chunk of the deck to make meaningful improvements
Villains (Black, Red, Blue) Final Fantasy is well-known for its iconic villains, and MTG put them to good use in this set as double-faced cards
Want to get real janky