Chandra, Flameshaper [Foundations Prerelease Promos] Cube Shell Whenever Catacomb Dragon becomes blocked

Whenever Catacomb Dragon becomes blocked by a nonartifact

Set: Unlimited Edition Type: Artifact Rarity: Rare Cost: {3} {3}

Set: Ravnica Allegiance Promos Type: Instant Rarity: Common Cost: {G}{U} Draw a card

the investigator's begins

−6: Exile the top seven cards of your library

Chandra, Flameshaper [Foundations Prerelease Promos] Cube Shell Whenever Catacomb Dragon becomes blockedSet: Foundations Prerelease Promos Type: Legendary Planeswalker Chandra Rarity: Mythic Cost: {5}{R}{R} [+2]: Add RRR. Exile the top three cards of your library. Choose one. You may play that card this turn. [+1]: Create a token that's a copy of target creature you control, except it has haste and "At the beginning of the end step, sacrifice this token." [ 4]: Chandra deals 8 damage divided as you choose among any number of target creatures and or