Blue Metalgarurumon
Basic 1 stack deck were you digivolve up and up into your level 5 or 6 digimon and start swinging at security
Win Con: Keep swinging at security when you're at lvl 5 stack and digivolve into your lvl 6 or X variants to unsuspend and attack again
Keycards:
Garurumon X & WereGarurumon: Sagittarius Mode - Both have an important inherit that prevent it's deletion by battle by trashing 2 of it's digivolution cards with the same level
MetalGarurumon and it's X Variant - Boss Monster of the deck, Normal Melga can be digivolved for cheap if you have enough cards in hand, Melga X can used as both an offensive and defensive play
Omnimon - Used just to close the game