Test deck for black base apocalymon that uses black tamers and options in combination with Black lvl6 effect to stonewall your opponent from attacking. A different variant on the stall tactics of apocalymon, Alphamon prevents large bodies from attacking while also turboing and extra lvl6 into the digivolution cards. Combined with the textbook Kongou into BT13 alpha technique you can effectively shut your opponent down from attacking, and combined with black tai that will allow you to unsuspend apocalymon after a block, your field with definitely become very oppressive. Metallicdramon also plays well with Kongou by not allowing any low level digimon from attacking to suspend, and preventing them from digivolving. Greyknightsmon also has a very interesting effect on play similar to kongou but I think overall kongou is better as it can be used to pass turn instead of having to just pass with apocalymon.
