Cannot be Normal Summoned/Set. Must be Special Summoned by its own effect. You can banish any number of "Armed Dragon" monsters from your field or GY, whose total Levels exactly equal 10; Special Summon this card from your hand, then you can add 1 "White Veil" from your Deck to your hand. You can only use this effect of "Armed Dragon LV10 - White" once per turn. You take no effect damage. At the start of the Damage Step, if this card attacks: You can destroy 1 card on the field.