Manaphy and Phione

[pyrromanis 70]

First of all, both Manaphy and Phione don't come with guaranteed 3 max IVs probably cause they belong to Water 1 and Fairy egg groups, although they do in canon games.
Second their egg sprites are a complete mess! Manaphy's egg sprite show up in the party menu when all the other eggs are just generic eggs

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But then, its in-status menu egg sprite is a generic egg sprite

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This is a Manaphy turned into an egg via debug

And for Phione egg, its in-status menu sprite it has Manaphys signature egg sprite

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This is an offspring from a Ditto and a Manaphy that hatches into a Phione

 

[Starry Knight 753]

Phione is considered breedable as you can breed for it with Ditto with Manaphy or a Phione

We don't have Manaphy yet but when we get do it should have 3 IVs gaureented