The most important is: how to make Ulforce survives after every attacks to security?
If we don't have the LV5 Aeroveedramon in its evolution source then we should figure out the strategy to boost its DP. We got 2000DP from Machgaogamon (if this is the LV5 under Ulforce's digivolution source), 1000DP from Rina Shinomiya for first attack when we rest this tamer, so it's likely Ulforce will have 13000DP in first attack. The 2nd attack will have +1000 DP from Demiveemon digitama and the 3rd attack will have +1000DP from Taichi V-tamer or another Shinomiya (if you have this tamer in play and rest them to make Ulforce becomes active again), Ulforce should have 15000DP in the 3rd attack.
The DP calculation does not take LV4 Veedramon in place because there is only 1 copy in the deck, we are not sure if it is lucky enough to be in Ulforce digivolution source
For 2 tamers (rest-able) in the battle, Ulforce can attack up to 3 opponent's securities, if there is more Taichi or Rina Shinomiya in the battle, the number of attack will be increased. We can increase the number of attack by evolving Ulforce to LV7 BT5 Omegamon to take advantage of "Advance" (Shingeki) and do another check. Else, we can evolve unrested Tamer (if have) into hybrid type Lobomon to do another attack to end the game. It always has a plan B.
I like it! Looking forward to implementing these cards once BT4 rolls out in the west!