Function 1: Solo Artist
Function 2: Part-Time Supporter/Buffer/Warrior
Function 3: Full-Time Warrior

You can do many things with a battle muse, you can assist a FS muse in a party
to keep other buffed and healed, you can strictly solo with them up until its
ineffective (bout lvl 60-ish). Or, as a party member, you can also blend in
with the soldiers and hawkers, and act as rose zuly a mercenary for hire (free =P).

Just so you know.. I wrote in a little bit about the skill builds having the
"Summon Tree" as optional. There’s a lot of pro's and con's to having a
summon pet.

Pros: Assistant fighter, not only dependant on your own stats to boost
theirs, but you can also buff them to make them even stronger. Believe it or
not.. I think that’s about all that’s good about them

Cons: You're going to get less experience because your pet uselessly steals
some. Your going to be at a serious MP disadvantage, already having a somewhat
smaller mana pool will screw you over if you try to cast a 200MP rose zuly summon pet >.<
The only summon a cleric can get is phantom swords and elemental; so you'll
waste a lots of SP on Magic Arms Mastery.. So just think about this before you
get the visions of a summoner/warrior muse. Not only this.. but some of your
buffs wont affect them.. Like bless body/armor/mind.