Ancient Wisemon focused deck that forces your opponent to strike into your blockers, lose memory, and get punished for hitting your security stack.
Build off agumon in the incubator into greymon and gigadramon to create an infuriating blocker-based memory farm that's hard to hit. Evolve into Ancient Wisemon from it and generate blockers whenever your opponent strikes.
Memory choke with tactical tamer plays, option cards or digivolving sephirothmon from mercurymon, forcing your opponent to attack at the start of their turn. Play Izzy tamers if you reveal them during your opponents attack and gain extra memory to end their turn early.
Play gotsumon fodders from Ancient Wisemon's effect and prevent damage whilst getting to search for helpful cards.
Play Wargreymon aces directly off Ancient Wisemon's effect, or play gigadramon to hunt for Aces and immediately blast digivolve to further frustrate your opponent. A fast base for an omnimon zwart to evolve off and hit hard, (after resurrecting more blockers first, of course!)
Get Wisemon on the field for a rapid play of ShadowSeraphimon to create more chaos! When you can't de-digivolve your opponent, use the blocker inherited effect to tactically fodder it against a boss monster and recover security, potentially performing a DP reduction kill in the process. Use gigadramon's end of turn effect to tactically sacrifice your seraphimon and recover if your opponent refuses to swing.