Solash1

Somebody made a booboo and had Oddysey Sona with a chroma in one of the shots

oops

Super awesome catch. Thanks for this, we're going to try and figure how that happened.

GirlsCantCS

Genuine question but are Chromas not allowed in skin teasers?

Generally speaking we try to keep lore lines connected. So base skins only appear with base skins. Skin lines (e.g. Odyssey) only appears with the same skin line. Chromas are technically not part of the lore, so they shouldn't appear in stories.

It's not a HARD rule, its just a general guideline to keep League lore basically consistent.