Devious cover-up
Devious cover-up did not counter 3 different spells back to back.
The only cards on battlefield were Lier, disciple of the drowned, mounted knight, a 4/4 wolf token with howl of the hunt attached to it (which my opponent controlled). There were no other artifacts, enchantments or special lands in play.
Each time it asked me if I was sure I wanted to counter the spell I chose (one had flashback, but the original spell was not countered before going to exile) the other two did not.
First two times there were cards in my graveyard to shuffle in. Third time there was not. Same outcome each time.
This was in a midnight hunt quick draft tournament. Would appreciate reimbursement for entering.

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sparksfamilyvalues#95319 commented
Go read Lier again
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TunaHotPockets#80631 commented
Did you even read the card Lier? lol
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mrbejam#30004 commented
Oh and howl of the hunt was one spell I couldn’t cancel.