What is this card worth

// Split card: two spells on one card, nothing on the back Mirror Room // Fractured Realm PDSK 67p $2 - 3 Promo Pack // Split card: two spells on one card, nothing on the back Mirror Room // Fractured Realm PDSK 67s $5 Prerelease // Split card: two spells on one card, nothing on the back Mirror Room // Fractured Realm DSK 67 $4 - 4 // Split card: two spells on one card, nothing on the back Mirror Room // Fractured Realm DSK 337 $4 - 7 Borderless