On my 2nd try with this deck, i got 7,5k DA, because pegasus use his Toon Canno Soldier to give me a damage, so i miss the "No duel damage" assessment.
@Benny i haven't try it for lvl 30 since it works for lvl 40.
I'm using a very similar concept myself, except with Vassal > Piranhas. If I can get No Damage or Comeback Victory, it'll get 8k even without glossy or prismatic cards.