Iron Challenge: 1000 Steelbirds Iron Challenge: 1000 Steelbirds has no description yet. Chain Preview Iron Challenge: 50 Steelbirds →Iron Challenge: 250 Steelbirds → Iron Challenge: 1000 Steelbirds Full Graph Steps & Objectives Step 1 Kill 1000 Steelbirds • Kill 1000 creatures Dependencies Prerequisites Iron Challenge: 250 Steelbirds Unlocks None