The second card that is very useful for ShineGreymon deck is the new tamer in BT04, [BT4-092] Marcus Damon. If any attack from a digimon with name "Greymon" in it, rest this tamer to gain 1 memory. Marcus Damon tamer can be summon for free from RizeGreymon main effect, using him to reset the memory to 3 when "start of your turn", and then get more memory when attacking with ShineGreymon.
The red option card, [BT4-100] Trident Revolver, is to delete 1 of opponent's digimon with 6000DP or les, then can play a tamer card with memory cost 4 or less for free. Above, we talked about using 2 tamers with Rizegreymon in digivolution source to deduct one digimon 10000DP. If we add 6000DP from this option card, it will able to deduct up to 16000DP, equal to a powerful LV7 digimon such as Omegamon.
Without knowing much else about the upcoming set, why the inclusion of DoneDevimon?
Actually the original deck did not include the Dandevimon. We have double checked and found the mistake that somehow added extra 4 copies of Donedevi in. We have update the post to put the original deck from its creator.