I would like to point out one thing the final deck (not the original it will soon be updated) works amazingly against false gods f5s and pvp.
Quintessence is needed to assure that the first Anubis survives and Pharaoh if your unlucky
As for the pillar to tower ratio it took a while but its perfect
You will need the gravity pillars only use of one scarab a turn isn't enough
and finally YES! you really should use crystals there a great form of healing and I almost always get elemental master with them