Fakemon

[App Fusion [Roamon] & [Effecmon]: Cost 0]
If 2 such cards are linked together, stack the link card on top and digivolve [Retaliation]
[On Play] [When Digivolving] You may link 1 level 4 or lower Digimon card from your trash or this Digimon's digivolution cards to this Digimon without paying the cost.
[All Turns] [Once Per Turn] When this Digimon would leave the battle area, you may play 1 of this Digimon's link cards without paying the cost.
[Link] [Appmon] trait: Cost 3
(Plug this card from the hand or battle area sideways into the specified Digimon in the battle area.)
[Scapegoat] (When this Digimon would be deleted other than by your effects, by deleting 1 of your other Digimon, it isn't deleted.)