in the Bounties event i often have to play vs ability outmaxed bot creatures now.
there you can see (and feel) what the different creatures will be like when outleveled and with level-10 abilities.
i must say Ravenmaster is a killer then.
but before reaching certain high levels he is not really overimpressive.
before the BIG pre-global-launch-nerf he was even much stronger. everyone was using him. he seemed imbalanced, so a nerf was justified.
but i guess players who had max-leveled him up already often stick to him now because he is still going strong in very high levels.
btw the most scary creature on high levels is the Vinebeard
we can be glad that it is unbelievably expensive to level him up even for whales.