Combo #1
Raising area: Gigimon (EX2-001) -> Guilmon (ST7-03) -> Guilmon (X Antibody) (BT9-009) (optional/important if you can) -> Growlmon (ST7-05) -> Growlmon (X Antibody) (BT9-011) -> WarGrowlmon (ST7-08).
2 Memory is all you need, move stack to Battle Area, make sure that your opponent has something that is below 6000 DP on the board so you can actually delete it with effects.
WarGrowlmon (X Antibody) (BT9-014) -> Mark up to 2 opponent digimon, Growlmon (X Antibody) (BT9-011) can add 1000 to the effect, Guilmon (X Antibody) (BT9-009) add another 1000. Now you can delete up to 2 opponent digimons with 8000 DP, if you get to delete 1 thing you get 1 Memory + Growlmon (ST7-05) effect gives 1 Memory a total of 4 memory. At this stage make sure opponent has no digimon on board.
Pay 3 Memory, digivolve WarGrowlmon (X Antibody) (BT9-014) to Gallantmon (ST7-09)
Swing to security, if opponent field is empty Gallantmon (ST7-09) gains +3000 DP, total 3 security checks.
Pay 1 Memory, digivolve Gallantmon (ST7-09) to Gallantmon (X Antibody) (BT9-017) there is nothing to delete, you can unsuspend Gallantmon (X Antibody) (BT9-017) now you can swing for 2 security checks thanks to WarGrowlmon (ST7-08) effect.
Finish the game with Omnimon (BT5-086).
Combo #2
Raising area: Gigimon (EX2-001) -> Guilmon (ST7-03) -> Guilmon (X Antibody) (BT9-009) (optional/important if you can) -> Growlmon (ST7-05) -> Growlmon (X Antibody) (BT9-011) -> WarGrowlmon (ST7-08).
On field Cool Boy (BT9-092) and Takato Matsuki (EX2-056)
You have 1 Memory.
Move WarGrowlmon (ST7-08) to Battle Area, Digivolve WarGrowlmon (ST7-08) to WarGrowlmon (X Antibody) (BT9-014), WarGrowlmon (X Antibody) (BT9-014) marks 2 opponent digimons + pop them.
You have 3 Memory
Suspend Cool Boy (BT9-092) + Growlmon (ST7-05) inherited effect + Suspend Takato Matsuki (EX2-056)
You have 6 Memory
Pay 3 Memory to digivolve WarGrowlmon (X Antibody) (BT9-014) to Gallantmon (ST7-09)
Swing for 3 checks.
Pay 1 Memory to digivolve Gallantmon (ST7-09) to Gallantmon (X Antibody) (BT9-017)
If opponent has 10 in trash digivolve Gallantmon (X Antibody) (BT9-017) to Gallantmon Crimson Mode (EX2-073). Give opponent 4 Memory, Gallantmon Crimson Mode (EX2-073) gain Blitz thanks to Takato Matsuki (EX2-056) thrash 2 security with Gallantmon Crimson Mode (EX2-073) and swing for game.