Anything that launches things in stages is good for myth. Moon Pieces isn't one of them. Holy Spirit and Tears are your best friends (next to jog) in myth.
I would go with the first build if you're going to myth. Although I would suggest taking out 4 points from HP Increase and dumping them into Light Shield...yes I know the reagent cost is up there, but it can be a light saver (especially if you have myth mobs stun-locking you all the time).
Deity, 70 + 77 Dainn, Inactive
BattleGod, 68 + 82 + 74 Sieg, Casual PvPer