Card Not Available In Classic Format

Not all Classic cards are playable in Classic Format. Only the 240 cards that were originally in the game when Hearthstone launched in 2014 are playable in Classic Format.

Classic cards that were added to the game at later patches cannot be played in Classic Format. This includes: 

• Icicle
• Tome of Intellect
• Call of the Void
• Pilfer
• Siegebreaker
• Gift of the Wild
• Righteousness
• Brightwing
• High Inquisitor Whitemane
• Barrens Stablehand
• SI:7 Infiltrator
• Arcane Devourer
• Kul Tiran Chaplain
• Scarlet Subjugator
• Shadow Word: Ruin
• Natalie Seline

Check our official blog post for more information.

Did you disenchant your Classic cards?

Classic Format cards are mirrored copies of the cards you own in your Legacy Set, and not duplicates. If you disenchant a Classic card from your Legacy Set thinking it was a duplicate, the counterpart in Classic Format will disappear. You will have to re-craft your card in Legacy Set. Blizzard Customer Support doesn't assist with restoring disenchanted cards.