Normally? Some of them are too good. I'm reluctant to say anything definite about arena though. I think they can be stronger than in constructed even but arena is a balance crapshoot. You have people without removal in there and people with 4 poly/swipe/hex. Balancing legendaries should be important I feel, but for arena everything goes. My post is just a random arena story I guess, for some reason I felt like sharing it.