You never speak much about your other siblings as much as Teucer. But I'm glad to always listen if, and when, you wish to do so. [ Is what Zhongli says with a smile as he cants his head to the side at the dragon-like Radzilla. Honestly, it kind of reminds him of his Exuvia form, but he'll keep that comment to himself. ]

Most dragons are, especially those remaining in Teyvat. Though here I'm not quite sure if they're powerful primordial beings as well. Still, this CosmicRadzilla seems to be both 'cool' and strong and fits the required payment of the deal to make the exchange.