The answer is March of Swirling Mist, which has all the same upsides as the New Capenna instant with a much higher ceiling
Thats at least three Clues, but it should be a lot more
At chapter II you can copy a spell, and at chapter III you can copy something twice
This creature's controller and that player each draw half that many cards, rounded down." P/T Set Number 67 Language Espaol Legal Formats Commander, Legacy, Modern, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Pioneer, Standard, Timeless Rulings (7/5/2024) If damage dealt by a creature with the ability granted by Sokrates's last ability can't be prevented for some reason, the appropriate players will still draw half that many cards, rounded down
Aside from the threat the +1/+1 counters create themselves, many of the creatures synergize quite well with them
The same is true for +1/+1 counters or any non-copy effect that has changed its power, toughness, or abilities