[Snake]

Those are Rank 3 effects, Hated. You'll need to spend SP on them and sacrifice spending on other aspects of Kensei to obtain that. To use this new Hissatsu you'll need to fully invest 9 SP for all the three Intent effects. The spirit behind this request is to make Kensei slowly grow in power as the fight goes on, and have a guaranteed finishing move once they're at their peak.

Lingering Damage from Resolve will take 5 Kensei Combos to fully stack. (So numerically, at BEST with all Fleurs hitting and your opponent not evading anything, you'll take 2 rounds and a half to obtain LV75, and at worst, with NO FLEUR, you'll take exactly 5 rounds for that.)

Pressure would make it so the first damage instance you receive from an enemy becomes a Glancing Blow, if they have Fear. And again if they have Hesitation. Both Fear and Hesitation have counters attached to it not only from classes, but also equipment, and one whole race who laughs at this premise.

Intent is just Ashe's stuff, using Boxer's targeting, and requires you to be faster than your opponent in turn order. It can be countered by skills that don't really target your enemy and target the ground instead. Which we have a lot of that nowadays.

SP costs are balanced (and fairly massive if you think about it, since you also need 1 point on Sakki/Touki/Kenki on top of Rank 3 over the Absolutes), the effects all have counterplay based on Kensei's thematics (Resolve = Deny their crits, Pressure = Deny their fear/hesitation, Intent = be faster than them or don't play the targeting game). So I'll have to ask, what exactly do you disagree with there?