Blissey get some changes.
Pokémon Unite wel be getting an update on the 8th of October and while theres the usual bug fixes and it seems Blissey is getting some changes as well.
Here are the full patch notes:
UPDATE DETAILS
- Bug Fixes
- Text Fixes
- Shop Updates
If the app has not been updated on your device, please restart the app to apply this update.
Changes are being made to some Pokémon stats and moves to adjust the balance of Unite Battles.
BLISSEY
The following stats have been increased:
- Sp. Def
Safeguard:
- Removes all status conditions from the user and the designated ally Pokémon and grants both Pokémon a shield. While these shields are active, the shielded Pokémon become immune to hindrances.
- Cooldown reduced.
- Area of effect increased.
Safeguard+:
- Upgrade: Increases the amount of damage nullified by the shield effect.

Source: Siliconera