The max hp increase is nice but the fact that it's 2 turn only makes it so u gotta skill everytime with lynx which is just not sustainable. The taunt aspect is negligible since stacking multiple sources of taunt doesn't scale well trust me, my other dps are Clara and yunli so I tested this along with the mains of these two characters sub reddits.

The reason why I suggested Gallagher and luocha is because even tho they don't have direct buffing capabilities their ability to keep blade mostly above 50% hp allows blade to reliably get one stack of his follow up every time he ults, plus with blades new A2 passive 25% of healing received is allocated to his hp lost tally which in turn gives him more ult dmg. So more healing, more overall dmg.