Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by sending 1 ""D.D. Esper Star Sparrow"", ""Beast-Warrior Puma"", ""Phoenix Beast Gairuda"", and ""Ironhammer the Giant"" from your hand and/or face-up from your side of the field to the Graveyard. You can Tribute this card to target 1 ""D.D. Esper Star Sparrow"", ""Beast-Warrior Puma"", ""Phoenix Beast Gairuda"" and ""Ironhammer the Giant"" in your Graveyard; Special Summon those targets.
![D.D. Jet Iron [Hidden Arsenal 7: Knight of Stars] [HA07-EN035] | Gear Gaming Fayetteville](http://fayetteville.geargamingstore.com/cdn/shop/products/68067_200w.jpg?v=1569144045)
