Advanced format ruling
Doomcaliber Knight
Card effect (current official text)Cannot be Special Summoned. If a monster effect is activated (Quick Effect): Tribute this face-up card; negate the activation, and if you do, destroy that monster.
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.