why smash/sonic wave & hard hit skill miss?

Hello

I am trying a new brawer tank. A good friend of mine play kunckle tank and he is about lvl 150 and he told me that he can almost always stop boss skill with smash (lvl 6) and sonic wave (lvl 10). So I decide to try it as well. With lower lvl boss , I can stunt and flich 100%, but with higher lvl boss (onlarf , Selee) I always miss. Even hard hit (lvl 10) miss as well. I use drill and toy hamer (+100 cit rate) so my cit rate is 125 which should be enough.

Smash (lvl 6) , Sonic wave (lvl 10) garuntee to inflict aliment 100% (stunt & tremble)

So i am confuse if i am doing something wrong here. Should I use extal that increase cri rate or something?

I dont see a lot of brawer tank video as well. Is it not a popular option compare to BG and OHS?

If these skill wont inflict 100% aliments then I probably has to use mainly BG tank for ampr advantage.

 

Evasion

 

Some bosses have crit resistance, thts why sometimes can miss.
. . like ornlarf or finstern

 

If you have enough crt rate, it mean you might need to deal with high evasion of boss/target.
1) Onlarf has high evasion rate, needs meteor from dps. Second, stun has high success rate when onlarf is leaping. Third, ailment like stun has better success rate after boss done his chain of attack or the gap between of the attack.
2) As for seele, tumble mechanism work the best even though at low success rate (impact 7 ohs tank), each time after she's doing her chain of attack/combo or during shes doing 360 spin. Its easy to tumble her. You need to find an opportunity and try select the right moment to flinch, tumble and stun. Well, bg tank is meta now while ohs tank is adaptable.