Cometmon

[App Fusion] [Warpmon] & [Weatherdramon]: Cost 0 If 2 such cards are linked together, stack the link card on top and digivolve. ＜Collision＞ [On Play] [When Digivolving] You may link 1 level 4 or lower Digimon card from your hand or this Digimon's digivolution cards to this Digimon without paying the cost. [All Turns] [Once Per Turn] When effects trash any of this Digimon's link cards, 1 of your opponent's Digimon gets -8000 DP for the turn.

＜Link＞ [Appmon] trait: Cost 3 (Plug this card from the hand or battle area sideways into the specified Digimon in the battle area.) [All Turns] [Once Per Turn] When this Digimon would leave the battle area, by trashing 1 of its link cards, it doesn't leave. [Linked Together] +4000 DP