Steelswarm Gatekeeper is a Super Rare Effect Monster card from Yu-Gi-Oh! (Hidden Arsenal 5: Steelswarm Invasion, HA05). Current market price: $0.22.
Super Rare
Hidden Arsenal 5: Steelswarm Invasion (HA05)
Card Text
If a "Steelswarm" monster is Tribute Summoned 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.
