Advanced format ruling
Armed Dragon LV10
Card effect (current official text)Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by Tributing 1 "Armed Dragon LV7". You can send 1 card from your hand to the GY; destroy all face-up monsters your opponent controls.
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.