>>712489165
I keep Maxx C because most good decks you get matched against summon on both turns so it's never a dead draw. 3 Paidra really improved my consistency.

Superpoly is a must
Ultimate Slayer is good too but sometimes you get matched against a Labrynth or something so I'd say 2 is fine

Don't fall for copies of hard once per turns, win in one turn or bust. But some good cards like droplet or either Thrust or Talent are worth a second one.

Promethian doesn't really do much in the deck if you have another Slayer target