Ah yes, the dreaded t50 poison farm deck, he also whupped me with it because you're pretty dead without RoF, purify, and a lot of luck.
Back on topic though i think your deck could do with a bit more defence, and i would probably take out either one pillar or a supernova and substituse it for a dim shield simply because they can work when the opponent is already winning and has multiple creatures on the board,also because you only have monsters to use 7 elements, even counting the monsters abilities, no much quanta is going unused, only real way to fix that is to add a dis sheild, even though you don't have many towers, but it may work sometimes, i think the deck needs a bit more damage, but i cannot think of anything else to put in and keep it 30 cards.
But more defence is a must.