This is only my personal opinion. I know I am kinda late in the game for Revenant's feedback it's just that there is so much to do in Warframe currently...
A) Revenant's sound FX: Sound FX for Revenant is too loud. Louder if you play with headset. Personally I don't really like the "Whale" voice but if you could just tune down the whale voice or make it more subtle that will be appreciated 🙂
B) Revenant's ultimate animation is, for me, too much ... how can I say? Goofy maybe? Anyways, I just have the feeling playing a ballerina:
I know it should be a "dance" but still.
C) Revenant's casting speed is too slow:
That's all! Thank you for your game DE! I am going back to hunt the Wolfy dude.