A Original Colored Magearna can be obtained from Pokémon HOME, as a reward for completing its National Dex. However, a Lv.10 Magearna that had 15 ribbons attached to it was obtainable by players within a few hours on Pokémon HOME's launch day. One reasoning, would be the devs were testing/creating the intend Magearna, and they didn't realize that this glitched Magearna was flagged as obtainable by player. Given an official announcement wasn't given on how to obtain one, some players