I went a different direction to get the Purple Nymph/Dark Nymph combo. It's a variation that relies on a 3-card combo, Nymph's Tear + Shard of Readiness + Quintessence.
6rq 6rq 6ts 6ts 6u3 6u3 6u3 6u3 6u3 6u3 6u7 6ve 6ve 75m 77f 7gk 7gk 7h0 7h0 7h0 7h0 7k0 7t4 7t4 7t8 7t8 7um 80h 80h 80h
It has 2 Entropy Pendulums, 1 Gravity Pendulum, 1 Dark Pendulum.
It is tricky to get the NT+SOR+Quint combo out, but once you do, you can play one Antimatter every round. After I get the one Purple Nymph out, the next two nymphs are Dark Nymphs in order to rack up the damage.