With as skilled as Yoda was as a swordsman, his attacks should ignore Protection TBH.
He should also have a Passive buff to pass on to his Jedi allies. OR a second leader ability.
For example, an effect which triggers each time he attacks with any ability called..whatever..Trust Your Feelings.
Each time Yoda attacks he grants a random Jedi ally Trust Your Feelings until the end of the encounter. TYF cannot be dispelled.
Whenever a Jedi has TYF they grant each of the following:
Attacks and damages with a basic attack, they heal themselves and all Jedi allies 1% health and protection for each ally with TYF.
If their attack misses, they grant all Jedi allies 1% offense and accuracy for each ally with TYF
Suffers a debuff, they grant all Jedi allies with TYF 1% Tenacity and defense for each ally with TYF
Whenever a Jedi uses a non-attacking ability, they grant all allies 5% TM for each ally with TYF.
Whenever a Jedi is critically hit, they grant 1% critical avoidance and evasion per TYF.
I'm not good with the numbers in this game's mechanics, but something along these lines.