Fans should note it also has red cheeks- which could be a nod to the fact that the first-edition base set Pikachu card had red cheeks, but this was subsequently changed to yellow cheeks in later printings
In this case, your Digimon was level 4 when this card's [All Turns] effect triggered, therefore you can delete a level 4 or lower Digimon.
There are many red/black creatures and legendary creatures that interact with discard, and this card can fit into these decks
While there are only a few combinations that always give the same card, there are a few consistencies to keep in mind
The goal of this expansion is not to overhaul the entire deck with excessively complex or rare cards, but to provide players with the means to extend fusion plays, and naturally raise the decks ceiling, all without adjusting Link Generations base structure