Thrumming Stone does not let me cast spells

I did cast [[thrumming stone]] and after that i casted [[dragon's approach]]. The thrumming stone trigger did show me 4 cards and highlighted one dragon's apporach green. But i was not able to cast that highlighted card at all.

Reproduce the interaction by casting Thrumming Stone followed by Dragon's Approach, then inspect the code handling the Thrumming Stone trigger and its highlighted card. Confirm whether the revealed Dragon's Approach can be cast, and verify the interaction with an appropriate regression test if the relevant test location is found.

Written by the indexing model from the issue text.