The ultimate isn't scary enough that I'd be scrambling to combo it with Doubling Season nor is it easy enough to reliably activate that I'd want it in Cat Tribal
Unfortunately, there are very few working cheats for Classic right now
Edge of Eternities brought with it a bevy of new mechanics
15 x 7 x 7cm Bandai One Piece Card Game OP-15 "Adventure of the Island of the Gods" box of 24 booster packs in a vibrant yellow display box showcasing dynamic blue-and-gold island-themed artwork
You could play a Cori-Steel Cutter, then cast a one-mana spell like Boltwave, Cut Down, Hired Claw, or Stormchasers Talent to trigger it and make you an additional token
His Green/Black build mills aggressively, then unlocks power thresholds at 15, 20, and 30+ cards in trash