Boltmon

When this card would be played, if [Nightmare Soldiers] is face-up in your security stack, reduce the play cost by 4.
＜Blocker＞ (This Digimon can block in the blocker timing.)
[When Digivolving] [On Deletion] ＜De-Digivolve 1＞ 1 of your opponent's Digimon. (Trash the top card. You can't trash past level 3 cards.) Then, delete 1 of their level 4 or lower Digimon.

[Alt]
[Digivolve] Lv.5 w/[NSo] trait: Cost 3 
[DNA Digivolve] Black/Yellow Lv.5 + Purple/Red Lv.5 : Cost 0
Stack the 2 specified Digimon and digivolve unsuspended.