Omnimon Alter-S

[When Digivolving] Delete 1 of your opponent's Digimon with 8000 DP or less, and return 1 of your opponent's level 6 or higher Digimon to the bottom of its owner's deck. [All Turns] When this Digimon would leave the battle area other than by one of your effects, play 1 [BlitzGreymon] and 1 [CresGarurumon] from this Digimon's digivolution cards without paying the costs. Then, place this Digimon at the bottom of your security stack face down.

Alternate effect

[DNA Digivolve] Blue Lv.6 + Red Lv.6 : Cost 0 Stack the 2 specified Digimon and digivolve unsuspended.