This is basically a bigger Reclamation Sage, which is pretty heavily played at the kitchen table in most formats
The idea of having your mouth closed off, or being gagged, is a common trope in Horror, and I think what Stanko does here takes it to another level
Its worth noting, however, that some foil Secret Lair cards have been known to warp and bend a bit, so you should check the condition of your cards before registering them for an official tournament (warped cards can sometimes be considered marked for the purposes of tournament play)
That doesnt quite seem worth the difficulty of pulling it off, but in the right local meta Id sleeve up Insight and go to town against the elf and Simic menaces
Even if youre not in a Dragon-based deck, this card is going to have some strong ramifications on the game once you play it