Updated to add in Seraphimon. Removed the lvl 6 Aces because everyone runs dedigivolve these days, and with how many lvl 5 Aces you give them, they cause massive memory overflow.
The whole deck now is played around Seraphimon barrier stack and Kari Revelation Combo. So many things give security recovery, and removal, and minus DP.
With a defensive combo, while Revelations of Light is on top of the security stack, digivolve or blast digivolve into Angewomon Ace, trash Revelations of Light, which does a blanket -5000 DP and Angewomon Ace, inflicts -6000 DP on an unlucky target. You optimally want to do it on your opponent's turn because it's flat-5000 DP to board and security until the end of your turn.
Kari, T.K., and Patamon are the memory engines.