The Blizzard Fang was released in April 2021 in Japan, and in July 2022 in the US. Core Digimon: Blucomon.
You can get this Dim Card using this link. Also check the evolution guide to see the requirements.
Here's the full evolution chart for Blucomon:
There are also other dim cards available for the Vital Bracelet. Here's the guide for each here :