I think this combat system is kind of the worst yet. its not intuitive... you can still 1 shot people... and fights last too long which means its you will need a group of people to take down a single target. and most importantly its not fun.
You tried to make the combat like legacy but your forgetting the combat in legacy kind of sucked as well.
I hope you reconsider and choose a completely new system... nothing like the current and nothing like legacy because they are both flawed systems and mixing them together doesn't help.
Some suggestions
-using take aim 3 times so that you can flex 5 times so that you can punch 1x and take off 30% of someone's defense is not fun. remove the offence bar and defense bars. it sucks. just use cooldowns.
-make each attack do something unique if it lands... slow movement of opponent, make opponent miss more, make your next attack 2x as powerfull etc.
-get rid of multi color attack types... each attack should be simplified to 1 color
-make defenses like maneuvers that you can leave on indefinitely... example: you pick shields up as your defense and it would give an effect to you like % reduction in damage taken and negative % to your damage modifier... sidestep might give a 30% change of avoiding attacks or something....jump could give 75% change to doge sweeping attacks..etc. so all defences would be like death or glory/bloodlust from legacy.
-armor should just reduce damage but not negate it.... every successful hit should deal damage... if you harass a noob and he shoots you with his trusty sling it should deal damage to you. get rid of all or nothing... just reduce the damage so you can take multiple hits.