Steelswarm Caller [HA05-EN046] Super Rare Battle of Omni Pre-Release Promos when an opponent's monster activates

when an opponent's monster activates its effect (Quick Effect): You can detach 2 materials from this card

destroy all monsters you control

place 2 counters on it

You can only use this effect of "Iron Knight" once per turn

If there is no face-up Field Spell Card

Steelswarm Caller [HA05-EN046] Super Rare Battle of Omni Pre-Release Promos when an opponent's monster activatesSet: Hidden Arsenal 5: Steelswarm Invasion Card type: Effect Monster Rarity: Super Rare Attack: 1700 Defense: 0 When a "Steelswarm" monster is Tribute Summoned face up by Tributing this card: You can Special Summon 1 Level 4 or lower "Steelswarm" monster from your Deck.