...Calling the Mystic Knights 'NB' has never occurred to me before, but yeah...They're always called 'it's. I guess they canonically are.
I will note that Chel is way stronger than the Knight, it seems. .38 tons to 1.69 I believe?
AP scales to about 6,400,000,000 Joules (about 1.529 tons) for Zeal actually thanks to the passive effect on 'Old Dragon Knight's Soul', which Chel doesn't seem to have a way to Power Null or turn off. So the difference is closer to a 1.11x in Chel's favor, shockingly close.
Chel is probably NB in the sequel that'll come at some point so this is moderately amusing.
What's the fellas schtick? His main thing that he's got that makes him interesting
Their main 'Schtick' is the Orb and Combo system, Zeal can use invisible energy Orbs in the air like a match-three puzzle game to give themself temporary Damage Boosts, shoot AOE energy blasts, Heal themselves, and make Forcefields to block damage.
'Old Dragon Knight's Soul' has the passive stat boost effect, but it also has a trigger effect. If Zeal scores 2 'Wood' combos at once they get a temporary 5x damage amp and reduce incoming damage by 25%
'Wood Orb Change' allows Zeal to change several other Orb types into Wood Orbs, which will make the above easier to trigger
They have a limited and temporary invulnerability they use at the start of battles, however Chel probably wouldn't trigger it anyways? So it's kinda useless here I think?
They can also use 'Power Released' to give themselves a 2x amp for an extended period of time, but they tend to PIS this and only use it after they take enough damage.
And they can fly and use ranged energy blasts with their swordplay. We've never seen this version of Zeal animated in the games or anime, so we don't know how much they'll actually use that mobility, but one of the other forms of Zeal actually uses their flight so there's that.
They're also weak to Fire attacks, and take extra damage from them, but Chel's Fire Manipulation seems like it won't take long to turn off so I don't know how long that's actually going to be an advantage.