Mostly a standard Alter-S Deck
There are some nice synergies you can use with the newer cards.
The game plan is quite simple: Gather your pieces, with Ukkomon (BT16-082). Once you have everything together play the two Lvl.3's and climb up all the way to Omnimon Alter-S (BT3-112) using the "When Digivolving" effects. After this you can "pseudo-Blitz" with Tai Kamiya & Matt Ishida (BT17-081) or even go into Omnimon Alter-B (EX4-073) for the finishing blow. If you lose your initial stack, you float into a CresGarurumon (EX4-049) + BlitzGreymon (EX4-051) for free, threatening another DNA-play.
This deck is far from being competitive in any way. It bricks like crazy and has a hard time recovering if you lose your initial stack or can't find the pieces you need. But I love Alter-S, and that's enough for me to play and build it.
If you have any suggestions or tips for improvements, feel free to let me know in the comments.
Thanks in advance.