i suggest (if you are starting new chars on each account) is to make the utility char (the one your server neds most of) on the third account.

main 1 invites raf 1
raf 1 invites raf 2
raf 2 is needed fights and levels up.
raf 2 levels raf 1
raf 1 levels main 1

all 3 chars get leveled and you use a char that your server needs.

ofc if you level all 3 together you get triple exp on them all that way as well and you end up with 2 chars with the mount. and then you will want another account soon. i can tell:P it gets addictive till you cant afford it lol.