Attempt at reviving my favorite deck from the BT7 meta for the modern age. Leans more into the combo aspect of setting up a big turn with Cherubimon (BT7-079) by sacrificing it to one of our effects after filling our trash. Spend early turns filling your trash by hatching from breeding, discarding with Koichi Kimura (BT7-091), or milling with Analog Youth (EX1-066) and Darkness Wave (ST10-15). Your security will help you slow down the game with blowout effects, but don't be afraid to swing your opponent some memory by blowing out a level 6 with a Chaos Degradation (ST10-14).
After you have a few tamers out and a few rookies in the trash, try to set yourself up with a Bokomon (BT7-081) in play so you can:
1. digivolve a tamer (Koichi preferably) into Loweemon (BT7-071) or KaiserLeomon (BT7-073), refunding the cost off bokomon.
2. digivolve into Rhihimon (BT7-075) for 1, then go into Cherubimon (BT7-079) to fetch back a tamer from trash.
3. You'll probably be swinging your opponent the turn from this, but having a lot of protection in your stack and Kari Kamiya (BT4-097) can make your opponent's life harder keeping it their turn.
4. When you have the turn back, swing in with your cherubimon, then use one of your self-deletion effects to crack him open like a rookie piñata and flood the board, getting 1 memory back from Koichi, and more from whatever Analog Youth (EX1-066) you have in play. BushiAgumon (BT4-038) can go in for lethal if you're in range, and Salamon (BT2-034) and Lucemon (BT4-115) will keep you out of the danger zone, putting more threats in your stack for later.