[quote=@1Charak2]
<Snipped quote by The Grey Dust>

Needs to be a thing with single cards that transform into another card if its effect procs to gain a different effect and vice versa...

[/quote]

Imagine this: A Gemini Union Pendulum Ritual monster.

Ritual summon it to get it on the field, Gemini summon it to gain its union effect.