Does anyone have any reccomendations about how high your stats need to be to defeat the boss. Now I have to raise my monsters agin because they retired w/ 180life(i know!) 450(for strenth monsters) 425(for intellectual monsters) defense250(for strength monsters) speed275(intelligence mon.)and accuracy 398.

thats not good but whats the best type for health and a power type I need high health I have a Devi its got ok stats

Work more on either defense or speed, and definitely life. If my psychic powers are working, you are probably dying in 2 to 3 hits right? You need to work on at least one of those defensive stats. Probably 2. Depending on what monsters you use I would suggest raising life and either defense or speed. Check the Stat Gain table to double check which would be better.

Thats my problem I hate lif training I cant beat
A rank because of that but If my method works
I will win

@Ddvw123abc It all dependends on what monsters you raise. If you raise a CP, Life Training will be your favorite thing on the ranch.

@Mr. or Ms. annonymous
I beat Xevion with all stats in the 400's except for int. at 250-270. I had a Zuum/dragon, a Garu/durahan, and a Ripper/joker. Once again, check statgain charts and pick whether to raise power or int. and def. or speed depending on the three monsters you bring to beat Xevion. There have been many questions on how to raise the best MR4 monster, so check those in Misc. Q&A for more info and specifics. Look for something like How to make Max Monsters or HELP!

Thanks but what about CPs pow or int?

Depends on the breed:

Monster Rancher Metropolis: Monster Rancher 4 Archive (PS2): FAQ: Statgain & Guts Regeneration Table for Almost All Breeds

And, whether you want to equip it with Pow or Int attacks.