I thought deathgrip was max damage so 925 points but i hear people say BE 525 is???

Yes, They are hitting for the most amount of damage possible at I believe 725. DG is just the highest move.

But that doesnt make sense? Dg leads to off+36 higher than all other levles

The off+36 is just the move number I believe since you start out on off+1 , the max amount of damage a wolf can do is 32 I believe ( might be higher with CS or ES not completely sure) they can do that at 525 BE , DG is sometimes preferred since you don't lean anything else after it so a DG wolf vs. a 525 wolf they would both do the same damage if they were both HW Hero exct...

this is the battle moves guide it might give a more accurate answer and explain better