Took a potshot of Act 5 and....

Midnite93

So I thought of taking on Act 5 to do some practice with a team of Corvus, X23, hood, Heimdall and OG Thor turns out I did not need to use items and units to beat 5.1 for now. So next fights will be the Electro Boss and the Archangel boss. There is a node called Burden of Might and I wonder what that node does. I think I should be able to do 5.1 at the very least.

winterthur

Burden of Might
-Every time you gain a buff, you lose 25% of your Max Power.•You also get a 15% reduction to Power Gain for every buff currently active on you.

Supremeguy95

The Archangel quest has the Brute Force node. Basically you have a 6 second timer that ticks down. Everytime you land a hit on the opponent the timer resets. If the timer reaches zero, you start to degenerate. (Attacking the opponent removes the degen and resets the timer). TL;DR: fight aggressively.