I have a few ideas:
-Max Prayer: It gets buffed in the future to level 10. HP cost is removed and it gets a range increase at max IIRC. I want to try it when we get the change.
-1 Moon Pieces: For push since you cant max it.
-1 Shout: more push back and mob control is always nice.
-1 Resurrection: self explanatory, may need this.
-1 Sleep: Can stop griffon/kent counters in myth. Could be useful in a pinch or if a counter activates at foriel/wildur in a key position
-Max concentration: Can be useful and save a bit of MP in long run.
-Max deadly magic blow: when stat update comes, more hax crits.
-Max MP regen: Assuming Intelligence increases MP regen (somewhat doubtful atm), this can be a lot of MP recovery.
Aurum211: Myth Healer 7th RB (350% exp rate RAWR)
Gummygumdrop: Myth Lime 4th RB (on leave for now...)
Mabinogi IGN: Zinc210: total lvl 7xx