Key to the Vault
As i deal damage i shall be allowed to play an exiled card this turn. But all i do is exile and get a note "you are not allowed to play this card. Press the button below to continue"
1
vote
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Rezzahan#77802
commented
Then most likely something like a Souless Jailer stops you from casting the spell. Yukriko, Blade of the Mighty could be stopping you as well.