With Ace Zoo, your blue lvl 3's play defense while your black lvl 5's hard play and have the potential to immediately digivovle into aces on your opponent's turn! Follow up with Zwart or Zwart Defeat to get more bodies out, and kaiser nail to get your aces back into play.
Gennai can sneak a blocker out from breeding to battle area, and your Tai and Matts can give your Zwarts more damage potential.