Diaboromon

Effect

[Hand] [Counter] ＜Blast Digivolve＞ (Your Digimon may digivolve into this card without paying the cost.) [When Digivolving] [When Attacking] You may play 1 [Diaboromon] Token without paying the cost. (Digimon/Cost 14/Lv.6/White/Mega/Unknown/Unidentified/3000 DP) [All Turns] [Once Per Turn] When an effect plays another Digimon, you may delete 1 of your opponent's play cost of 3 or lower Digimon. For each of your [Diaboromon], add 2 to the maximum play cost for this effect.

Source Effect

Ace Overflow ＜-4＞ (As this card moves from the field or under a card to an area other than those, lose 4 memory.)