Bought a very expensive GK on auction (over 20 tokens bid war, price way over 60M for a 47M, I hope it's worth the waste.

level 11
18- 47M - 5* — 10%H up to 40 — 20%H up to 80 — 30%H up to 95 — (market) GK

I don't know why he trains best at 20%. At 30% he's not too good. Let's see how he performs in a game.