It really breaks my heart that there’s a bunch of Digimon that were entered into those Original Digimon Contests, ones that actually won the contest and became approved Digimon by Bandai, but were then left to rot without ever even getting official art or anything despite being winner Digimon.
One such example is Holy DigiTamamon. It’s an Ultimate Level Digimon, it’s attack is Holy Dream, and it looks like this. That’s all we know about this Digi.
So here’s a shout out to the kid (whoever they might’ve been) who entered Holy DigiTamamon back in 2000 and won, but was horribly ignored and treated by Bandai. Here’s my quickly sketched interpretation of your Digimon.