Must be Fusion Summoned. You can only use the (3)rd effect of this card’s name once per turn.
(1) You can only control 1 “First of the Dragonlords”.
(2) Cannot be destroyed by battle, and is unaffected by other monsters’ effects.
(3) Once, while face-up on the field, when a Spell/Trap Card or effect is activated (Quick Effect): You can destroy all Spells and Traps on the field.