In your party u should have one member to act as a decoy for odin. This person should be good at hitting targets from a distance, the decoy should walk in a large circle around the arena and shoot odin as soon as he finishes an attack, then walk in a large circle again when odin gets ready to attack and repeat. Meanwhile the rest of the party will hit odin with everything they got and take out the crystals that spawn. Bear in mind that odin wont focus on your decoy forever, he will focus his attacks on someone else. If you are up close and personal with him use guard and when u have an opportunity get some distance between yourself and odin and walk in a large circle, if u are attacking from a distance and u become the decoy just walk in a large circle hitting him whenever u can. IF U SPECIALIZE IN CLOSE COMBAT AND U BECOME THE DECOY DONT BOTHER TRYING TO ATTACK ODIN. Your previous decoy will then be responsible for taking out crystals and hitting odin. Repeat this until he is defeated. Ideally this works with at least 3 ppl. One of them must have a bow and wand and be good with it. As well all party members should at least have the hawkeye magatama equipped before they face odin. Hope this helps

you know, I had a hell of a time trying to take this guy solo with my bow, because his leap just had such a huge range and he did it so often

eventually I just said "screw it", stacked on 3 +60% twin blade affinity magatamas, and just railed into him with my twin blade slash III and lightning slash III. took him down in about 20 seconds with only 1 resurrect

strategies againts him would have been helful to me when i fought him

soloed him being only lvl 30, died about 5 times but i managed to kill him

taunt and block ... he hit me only for 8 with block... problem if the timing missed, he hit me for 800 lol

Odin made me thankful for my free soul eggs.