Notes & Combos
This deck can go either first or second, you want to start with the shining sarc cards to bait negates, thanks to DMG you can also force the owl gy effect if you happen to draw it.
With the new DM support you can put a dragoon and I:P on the board before getting to nib range so you can do your artmage combos while protected.
I went with ultimate slayer as a going second card because I already need to discard for the sarc line, but superpolly should also work.
Lastly, the synchros are there in case you start with diviner as she can be an artmage starter but sometimes you can keep her on the field to synchro summon with medius or galaflare.
Replays
894-776-733
The last replay shows what you can do going first and the rest are either going second or playing through interruption.