Why didn't my Nidorino get Thrash when it evolved into Nidoking on level 23?

Question

I evolved my Nidorino into Nidoking at level 23, but it didn’t get the move Thrash! I tried to level up but, nothing happened!

Comments

Yeah, there’s a relearner on Two Island who wants either two Tiny Mushrooms or one Big Mushroom. You can farm Mushrooms by using Thief on Paras (or catching them) in Mt. Moon, if you don’t have enough.

Answer 1

In FRLG only, it learns thrash at level 22. Sorry, I guess.
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