select card sleeves Dragon Shield Matte (Turquoise) which combine texture Card Armour 1200 Pack Regular

While there is no market price data available at the time of writing, TCGPlayer shows this card with a listed price of $48.99 USD

However, popularity is (almost) everything when determining a card's value, and the Cornerstone Mask falls short of its counterparts by a wide margin, losing out due to its slightly off-putting facade

Both saw a great deal of play in tournament caliber decks in a variety of formats as long as they were legal, with both remaining absolute powerhouses in the Vintage format as well as serious threats in Extended, at least prior to the rotation of dual lands

In Strixhaven, Lessons were underpowered spells that made up for it by being easily accessible during gameplay