Historic: Kappa Affinity!
Modern Horizons 3 brought many new , interesting and powerful cards to MTG Arena, although not all of them saw play because they were overshadowed by other , even stronger cards or because they lacked the right synergies. The best example is probably Nadu, Winged Wisdom, which in Modern was one of the absolute protagonists for a few months until it deserved the ban, while it was basically unplayed in any of the digital platform's formats due to the absence of Shuko.
Another card that generated a lot of hype during the spoilers, but then didn't live up to expectations, was the reprint of Kappa Cannoneer, which was already in Neon Dynasty Commander and therefore already played in Legacy.
Its power level, however, seems to be absolutely respectable, with a whole series of stats that would potentially make it in line with the Historic format, but where probably there aren't yet the right tools to support it. To find out if this is the case, today we'll try to find the most suitable home for it, brewing a full artifact version that will make it the protagonist!