I think it should just be mandatory policy that if you have Pendulums in your archetype, you should get a hybrid Pendulum of your mechanic (aside from Links obviously).
>Ritual: Nouvellez, Amorphage, Nekroz/Zefra
>Fusion: Performapal, Fluffal/Edge-Imp/Frightfur, Shaddoll/Zefra, Ritual Beast/Zefra, Amazoness, Crystal, Performage, Melodious, Lunalight, Predaplant
>Synchro: Speedroids, Yang Zing/Zefra, Deskbot
>Xyz: Tellarknight/Zefra, Performage
>All 3 ED: Supreme King Dragon, Dracoslayer
This is every deck with a Pendulum that lacks their respective mechanic's hybrid Pendulums.
Side Note: Holy fuck why are there so many Fusion deck that slapped Pendulums in compared to others?