Question

How high can you possibly get a Blissey's HP?

Answer 1

1428 HP.

This is achieved by taking a 714 HP Blissey and boosting it to Dynamax Level 10. When Dynamaxed, Blissey's HP will double.

Comments

Selecting your own post is devious

Answer 2

Blissey's highest possible HP is 714.

Comments

Are you sure because I saw a Blissey with more than 1,000 HP.

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1.) This answer was from nearly 7 years ago now. There's little point in commentating.

2.) If you've seen a Blissey with 1000 HP then that Blissey was hacked and not legitimate. 714 is the highest possible HP for Blissey. It's the absolute maximum.