Fan:Trinitimon

Trinitimon is a Legendary Digimon and carrier of the X-Antibody, yet nothing is really known as to what it is yet. It is said to only exist by mere rumors for now, so nothing much is known about it so far. Though no design exists for now, it's appearence resembles several different Royal Knight Digimon.

Digimon World: Bronze and Cobalt Versions
While it is programmed into B/C, it cannot be obtained in this game as it's Digivolution requirement involves an item exclusive to Jade Version. Trinitimon can be transferred to B/C with no issues at all. It's digivolving requirement is not necessarily an item really, but actually requires the previous stages to be their X-Antibody counterparts.

Digimon World: Jade Version
It is the final Digimon in numerical order in both B/C and Jade Version. Alongside X-Antibody versions of Digimon designed for B/C being exclusive to Jade Version, Trinitimon is exclusive to Jade version as well inorder to help promote the game during it's limited availability. Should Jade Version never get made, Trinitimon and the item needed to digivolve into it would be released for B/C as DLC to ensure it's able to be obtained at all, although Jade Version would actually be developed and released about the same time as B/C will be, as all of what will appear in Jade would be programmed into B/C. The Digimon it digivolves from is a surprise for now, but they have already been revealed on this Wiki before.