To level up fighter, you just grind, grind, and grind at the gym fighting, which is VERY annoying, but at least there is a button to auto win those. However, I have no idea how to get agility up to level 3, I know you can get it from spying and taking sneaking shots at the pool, but I already took all the pictures at the pool and still on level 2 for agility. Outside of that, I kind of gave up on the tournament, it is pure RNG nightmare, where even if you get high fighting, it still falls down to random luck and and since its a chain, your luck usually runs out before you get through half of them and you have to wait another month before trying again. Has anybody actually beat the tournament?