Charybdis Toad

Charybdis Toad (カリュブディス・トード) is the result of Mipherius using his Concept Merging ability to gain the powers of both Tensura characters and Konosuba characters. The resulting form was a mix between Charybdis and a Giant Toad.

The only way to defeat it is to use attacks from both TenSura and KonoSuba at the same time. It was defeated when Rimuru and Megumin used a combined explosion spell to end Mipherius.