Cresgarurumon has <SecurityAttack+1>, which is currently rather rare ability among purple digimons. Digivolve him from [BT2-078] Weregarurumon to inherit its effect allowing Cresgarurumon to unsuspend once when attacking, which however requires destroying one of your other pokemon. With this combo, Cresgarurumon will be able to check 4 security cards within a turn.
This combo requires destroying one of your digimons to unsuspend Cresgarurumon. Any of your lower DP or rested digimons make good candidates. If you do not have one, use Cresgarurumon's <Digi-Burst 2> effect to play a LV3 from your trash: [BT4-079] Labramon and [ST6-04] Dracmon make great candidates with their <On Play> effects. Dracmon can also return a [ST6-15] Death Claw to your hand.
Death Claw synergizes well with Cresgarurumon, allowing you to delete your opponent's LV4 or lower digimon, which include most blocker digimons. Cresgarurumon will be able to deal maximum security damage when he is not blocked.