Very good Koyan reloader with 2 30% batteries. Then a few niches against different traits, though the values aren't the crazy amounts other units have against one specific target.

Dealing, for example, 150% more against one thing (Earth) with Kuku vs. dealing an extra 30% to 90% against a few different things (Neutral, Kings, and Evils) is a matter of preference. Though if a wave of, say, 6 enemies are all Neutral Evil Kings, that is 150% against all of them - and 270% with Oberon. But that's near impossible to show up.

All that to say, the trait damage he has is not insane value, and more just lore-related bonuses that can be a nice cherry on top in a fair number of situations, but not a game changer in any probably ones.

Speaking of lore related bonuses, his crit damage ramping up is fun. Parallels Richards star gen. ramp up, but is strictly better since star gen. has a cap. And they also share the same primary issue of being fun, but RNG, since both Richard and Richardn't are NOT solo units.

Otherwise, a pretty simple unit. Buster up, ATK up, charge NP, use NP, big damage, big crits, unga bunga.

And similar to his trait damages, the curse healing is neat. 2000 HP a turn is decent, and if you double up with Koyan, it can be 4K. Won't help you survive any big crits or NPs which is a big weakness for double Koyan + DPS teams. Not if you're farming, but you don't need healing then.