| def = 1900
| image = SteelswarmGatekeeper-HA05-EN-SR-UE.png
| number passcode = 26722601
| effect_types = Continuous
| lore = If a "[[Steelswarm]]" [[Monster Card|monster]] is [[Tribute Summon]]ed [[face-up]] while this card is face-up on the [[field]], you can [[Normal Summon]] or [[Set]] 1 monster in addition to your Normal Summon or Set that [[turn]].