He's level 70 though. Generally Grimtooth is faster but here we can carry 1000 meat and spam the hell out of it. He should level quickly until 89 with what I'm going to give him. And..... My first assassin ( who used a +7 Soldier skeleton x 2, Hunter fly Jur ) was able to level at seals with no real gear ( +4 [ 0 ] armor, moonlight hat and 2x crit rings ) from 80 up until I hit 97, I would have went to ice titans/Turtle island surface/hillwinds/Sandman/Venatu/Bathories but I had no money for a VVS elemental dagger or a nice katar and could only afford ice katars ( lol@80k )

And I did so without spamming meat.
He already said he has a +4 raydric to use, I'll be giving him a swordfish and a verit card. With an assassins dagger he'll get 20% more Hp, VVS wind damascus will boost his damage so he should be fine as long as he's not getting mobbed.
Grimtooth is a great way to level, but a lot of people for some reason suck at it. So I was just gonna tell him to go and rape seals till he hit a high level.
Grimtooth is great at Hill winds, Juperos, Bathories et cetera. You gather mobs using 2x fortune swords and once it gets big enough, switch to your katar, hit the hide button and grimtooth away. Venatu's will level you really quickly if you know how to survive there ( and you can do it naked as long as you've got a good weapon, so gears aren't a problem assuming you know what your doing ) Generally grimtooth leveling is saved for 80+ though as its easier to get to 80 using a katar or a dagger melee build.