Re:Zero Episode 16 Early Access - Deal or No Deal?

The Merchant calling the Cellphone a crystal light instead of a Metia isn't because of a translation change. The Merchant is referring to a type of crystal called 'Lagmite ore'. It's a white crystal that emits a white light when held. It's often used as a torch and you can see Subaru use this when entering Old Rom's Shack where he encounters Rom's corpse and dies for the first time. The Merchant probably thought it was a type of Lagmite ore due to Subaru using it as a source of light.

You might wanna remember the name Flügel

Happy re zero day everyone! getting closer to a huge episode :)