Aye, the power of aetherfish has reached critical levels.
Score: 17472 (lvl 38)
Won: 769
Lost: 264
Electrum: 1179
Cards: 651
Arena deck: 1-0 ( mostly same deck as previous monoaether that got first, but with Water mark Freezes for CC)
Current AI4 grinder and certain FG counters deck (has 1 Quint and 3 Silences for more counters):
Hover over cards for details, click for permalink
4sa 4sa 4sa 4sa 61t 61t 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 71b 71b 77f 77f 7h2 7k2 7n3 7q5 7q5 808 80d 80d 80d 80d 80f 80f 8pu
Unused upgrades: 31
List of unused upgrades: Maxwell's Demon, Chaos Power, 2 Supernova, Improved Plague, Elite Mummy, 3 SoSa, 3 Flesh Recluse, 2 Arsenic, Jade Dragon, Elite Cockatrice, Forest Spectre, Abyss Crawler, Arctic Dragon, 3 Ray of Light, Light Dragon, Sanctuary, Wind Tower, Elite Queen, Shockwave, Wings, Eternity, Vampire Dagger, Electrocutor.
Notable missing cards (unupped or upped): Purify, more Quints,
Fractal, 3 Devourers and 3 Drain Life (from standard Monodark), 3 Horned Frogs and 4 Adrenalines, 2 Graboids, 5 Nova and 4 Supernova, 2 Bone Wall, 4 Poison, 4 Antimatter, 5 Purple Dragon.
Notable other unupped decks: Peggy rush, Monofire, BW/SoBe/RoF deck, decent Monodark, Monoaether, decent Pharaoh deck, control Grabbow, controlbow.
Due to the amount of upgrades aetherfish has won from AI4 and mostly daily FG killing, it's well beyond the point of one fully upgraded deck and can declare this challenge overcome. aetherfish will still, however, continue its journey for more power. It's the only thing it understands to some extent, after all.