Soul Linker skills

I wana set my soul linker use assassin spirit when my sin nids it in bot.Can anyone help me here?I dunno da skill config

Try this:

partySkill Assassin {
lvl 5
maxCastTime 0
minCastTime 0
hp
sp < 50%
homunculus_hp
homunculus_sp
homunculus_dead
onAction 1
whenStatusActive
whenStatusInactive Assassin
whenFollowing 1
spirit
aggressives
monsters
notMonsters
stopWhenHit 1
inLockOnly 1
notWhileSitting 1
notInTown 1
timeout 140
disabled 0
manualAI 0
target (SinX's Name)
target_hp < 80%
target_isJob
target_isNotJob
target_whenStatusActive
target_whenStatusInactive Assassin
target_aggressives
target_monsters
target_timeout 140
target_deltaHp
target_dead 0
inInventory
isSelfSkill 0
}