Card Errata:Chthonian Blast

Old Lore: You can only activate this card when a face-up monster on your side of the field is destroyed and sent to the Graveyard. Destroy 1 face-up monster with the lowest ATK on the field, and both players take damage equal to half of its ATK.

New Lore: Activate only when a face-up monster you control is destroyed and sent to the Graveyard. Destroy 1 face-up monster with the lowest ATK and inflict damage to both players equal to half of its ATK.