Utilizing Leomon's want to swing at security freely and potentially gain memory.
A few things to think about:
Leopardmon (BT3-030) gives all level 4 and lower digimon [Jamming], which allows for "free" checks depending on the matchup.
Leomon (X Antibody) (BT9-050) and Panjyamon (X Antibody) (BT9-051) allow you to play a Leomon from digivolution sources after the battle, keeping a body on the board when swinging at security.
Since you easily have a blue level 4 digimon in play, you can play Stingmon (ST9-09) for a cheaper cost to jogress/DNA digivolve into Paildramon (ST9-05) and do unsuspending shenanigans. Imperialdramon Dragon Mode (ST9-06) allows you to play 1 blue level 4 and/or 1 green level 4 from digivolution sources, which can synergize well with Leopardmon (BT3-030)'s [Jamming] effect stated above.
Shivamon (BT8-057) is there as a tech option to stop option cards and trash security.
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This deck is disvantageous to wide board clear cards (like Crimson Blaze (BT8-097)). Remember that the X Antibody variants of Leomon and Panjyamon only allow you to keep a Leomon if it dies in battle, so option cards and effects will not allow you to keep a Leomon in the battle area.
