Hardened Armed Dragon

Card Number: SDRB-AE015
Card Type: Effect Monster
Level: 4
Rarity: N
Attribute: Earth
Types: Dragon
ATK: 1500
DEF: 800

(This card is not treated as an "Armed Dragon" card.)
You can Special Summon this card (from your hand) by sending 1 Level 8 or higher monster from your hand to the GY. If you Tribute this card for the Tribute Summon of a Level 7 or higher monster, that monster cannot be destroyed by card effects.