Shakkoumon

[When Digivolving] Until your opponent's turn ends, give 1 of their Digimon "[Start of Your Main Phase] This Digimon attacks." Then, if DNA digivolving, ＜De-Digivolve 1＞ 1 of your opponent's Digimon. (Trash the top card. You can't trash past level 3 cards.) [All Turns] [Once Per Turn] When this Digimon would leave the battle area other than by your effects, you may play 1 level 4 or lower yellow, black or [CS] trait Digimon card from its digivolution cards without paying the cost.

Alternate effect

[Digivolve] Lv.4 w/[CS] trait: Cost 3 [DNA Digivolve] Yellow Lv.4 + Black/Blue Lv. 4: Cost 0 Stack the 2 specified Digimon and digivolve unsuspended.