They used part of their feathers to form a shield, protecting them from the deadly attacks coming from my Avengers. And the other part moved to giant shaped big swords, axes, and knives that kept taking away my Avengers' lives.
Even with the use of the Avengers I as tanks, they managed to penetrate through their shields and kill many of my Avengers.
Yet that didn't just come without paying a hefty price from these fiends. Even if their feathers worked in tacit cooperation with their gears, the attacks coming from my Avengers were too much to handle.
Especially those AOE and melee Avengers. Both worked to bring down most of the fiends.
Yet seeing those fiends in action made me heave a sigh of relief.
If I didn't take the initiative, take them when they were least prepared, then trying to win them in a fair direct clash would be quite hard.