Well, I need the amethyst pillars to pull the purple nymph from. You are right about the cloak, it is better to use a few antimatter cards, I modify the deck for that.
I tried with just antimatter cards, no nymph, but there are problems with rushers, I can't pull enough antimatter cards fast enough. There I would need 5 out of 6 fast -- very low chance, usually some gets stuck deep in the deck. The good thing about the nymph tear, that even though I have 4 in the deck, I only need 1, and then I can turn all creatures. It also costs half the quanta than the spell card.
Thanks for the tips!