The unupgraded deck - how exactly does it win? I'm 0/6 against seism with it as of today.
It seems that the moment you play dimensional shield, you will not get enough quanta to play a phase dragon until when your dimensional shield runs out, where playing another dimensional shield will prevent your ability to play the dragon.
Also, if you don't go first, you're liable to lose 2 pendulums, regardless.
I have never managed to get him below 150 HP...