With Urogrim I wouldn't worry too much about attack. His A1 is his only skill that does damage and it doesn't hit hard at all. This makes lifesteal not a great set for Urogrim. 

I would go with a good mix of DEF/HP, accuracy and speed for Urogrim. He just needs to be able to survive, place his poisons and keep himself/your team alive with the heals/cleanse. 

Stats over sets as usual but Speed, Perception, Accuracy (earlier on in the game) and Regen/Immortal (when you can get there without hurting your overall stats, or for specific content like Dragon 20 farming) are all sets I like on him. 

Thanks for the input. :) i no longer have enough silver to change his gear around tho cuz ive done some intensive cleansing and upgraded his rank. So now urogrim is r6! :)

dthorne said everything about his gear. The more interesting part are his masteries. If you want to use him at CB or as a usual team member in dungeons, you probably want Warmaster as tier 6 mastery. But for solo Dragon you want Oppressor, otherwise the enemies in the waves get to many turns.

Really? didnt think of that. i use him everywhere tho. mainly dt what mastery set should i go with for that the same as dragon?

I'd want Urogrim in defensive/support for Doom Tower because you're just going to want to be mitigating damage, extending debuffs and taking turns more often. Urogrim isn't going to be fast for clearing stages, so we want to make our runs stable.

Ok thanks for the advice. Btw this is my main acc so u might see this one from time to time.

This is good advice here.

Share your build when you get it done, OP. We'll see if we can make some suggestions on improvements after that. :)

ok will do might take some time tho cuz im farming for the justiciar fusion