What type of bug are you reporting? Mechanics
What is the bug?
Ogerpon Tera forms terastallize into nonexistent forms
Are you able to replicate it? If so, how?
1. Add "Ogerpon-Cornerstone-Tera", "Ogerpon-Hearthflame-Tera", "Ogerpon-Teal-Tera", or "Ogerpon-Wellspring-Tera" to a new team
2. Give the Ogerpon at least one move
3. Enter a Gen 9 Custom Battle with someone
4. Terastallize the Ogerpon
If successful, the Ogerpon should now be in a nonexistent form with exceptionally low stats, and if it had Ivy Cudgel, it will now be Grass-type
Replay showcasing the glitch: https://replay.pokemonshowdown.com/gen9customgame-2311855186
Both Ogerpons had 252 Attack and Speed and a Hardy nature
Note: I first encountered this in Hackmons Cup when my opponent terastallized their Ogerpon-Cornerstone-Tera. I do not have this replay
What is the bug?
Ogerpon Tera forms terastallize into nonexistent forms
Are you able to replicate it? If so, how?
1. Add "Ogerpon-Cornerstone-Tera", "Ogerpon-Hearthflame-Tera", "Ogerpon-Teal-Tera", or "Ogerpon-Wellspring-Tera" to a new team
2. Give the Ogerpon at least one move
3. Enter a Gen 9 Custom Battle with someone
4. Terastallize the Ogerpon
If successful, the Ogerpon should now be in a nonexistent form with exceptionally low stats, and if it had Ivy Cudgel, it will now be Grass-type
Replay showcasing the glitch: https://replay.pokemonshowdown.com/gen9customgame-2311855186
Both Ogerpons had 252 Attack and Speed and a Hardy nature
Note: I first encountered this in Hackmons Cup when my opponent terastallized their Ogerpon-Cornerstone-Tera. I do not have this replay