I guess my question is why was H made rather than using P when Rage Extractor was printed (before Bloomburrow by many yeats) since its referring to a kind of generic phyrexian cost?

This is maybe a weird question; does the existence of {H} 107.4g as a separate symbol from {P} as shown in the Phyrexian Mana symbols in 107.4f mean that the {P} couldn't be used as a standalone mana symbol in rules text?

Hybrid being allowed is no weirder than being able to use effects that change color, things like extort and firebending, off color fetches, things that make off color tokens. Some of these things result in off color game stuff in play, heck, Kobolds were playable everywhere at one point in EDH.

Maybe this is gonna sound unhinged, but without direction to say that only 4, 7, 8, and 9 are in a group, my mind immediately came up with the group of 'things that could be alive' Which would be 2, 3, 4, 7, 8, and 9.

And still creates some questions for image 2.

They just need to snuggle for warmth, they're very good friends.

Good Luck, All