"Greffe Hortis. I've been expecting you."
Copper Kate is the boss of the Tech District and the first main boss who feels genuinely unfair. She runs a Copper-type team with nonstop energy regen, which means she spins at Tier 3 or higher every single turn. You can't out-energy her — you have to out-strategize her. This is the fight that separates players who understand the energy system from players who don't.
Kate's entire team regenerates energy every turn. That means she's landing guaranteed doubles more often than you are, and she has a huge pool to burn on Tier 4 and 5 power spins. Her signature Motherboard also buffs the rest of her team's match chance. If you let the fight go long, you lose.
Team composition wins this fight before the first spin. Here's the 1 Main + 3 Support build that counters Copper Kate's specific mechanics:
Need creatures? Browse the full Token-mon roster or read the metal type guide for deeper type math.
Open the fight at Tier 4 (4 energy). Don't scout. Don't ramp up. Commit to burst from turn 1 because Kate's match-chance buff gets stronger the longer her signature lives.
Use your Titanium supporter's match-chance active on your Tier 5 spin. 5 energy + guaranteed double + 50% triple chance + 30% match bonus from Titanium = the biggest single spin you can produce in a district-boss fight.
Never bet Tier 1 or 2 against Kate. Her regen makes every turn a high-stakes exchange. A low spin from you is a free round for her.
If you're new to energy tiers, read the slot-reel battle system explainer first.
Trying to play a long game with Silver heals. Kate out-damages sustain teams because her energy pool is infinite. You have to race her.
Motherboard is a Copper type with a team-wide match-chance buff. It has lower HP than most signatures but sits in the back — prioritize hitting it over Kate's other creatures. Every turn Motherboard is alive, you're spinning into buffed boss reels.