Advanced format ruling
Dragon's Gunfire
Card effect (current official text)If you control a Dragon monster: Activate 1 of these effects;
● Inflict 800 damage to your opponent.
● Target 1 monster with 800 or less DEF; destroy that target.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.