Pure Red Greymon Tribal deck using the new MetalGreymon, Alterous Mode, AND BlitzGreymon ACE from EX9.
Alterous Mode can evo into WarGreymon OR BlitzGreymon ACE for 2 or less with the right set-up. BlitzGreymon ACE is BOTH offensive AND defensive with Alliance AND SA+1 if you Digi into Omni X on swing OR defensive with De-Digivolve 3 and Blocker.
Most builds use EX1 Greymon to play tamers for free BUT I love the free Extra Memory from BT5 Greymon when combined with BT14 Agumon which can start your with at least 2 extra memory if you have a BT6 Tai on board when you move up. Only other cards I want to include are P-182 WarGreymon and the ST20 Agumon but I can't wholy justify what to cut for them. BT21 WarGreymon would also be something to consider especially with the ST20 Agumon since it can warp right into it and have rush.