Steelswarm " Steelswarm " , known as " Inverz " ( インヴェルズ " Inveruzu " ) in the " OCG " , is an archetype of DARK Fiend monsters with 0 DEF ( excluding " Steelswarm Gatekeeper " ) , first released in " Duel Terminal - Raid of the Inverz ! ! " . " Steelswarm " is a sub - archetype of " lswarm " , and its members are supported by " lswarm " support cards . Their team symbol is a black demon mask that also resembles a claw or beetle ( being appropriate since all " Steelswarm " are insectoid in form ) which is tattooed on to the bodies of all its members . According to promotional material for " Duel Terminal - Judgment of Omega ! ! " , they are enemies of all the other teams in the set . Duel Terminal Storyline . Steelswarm are demons that were sealed in the deepest abyss during the ancient times , after losing their battle for control of the world against the " Vylon " . After being awaken from the chaos coming from the war between the " Gusto " and " Gishki " tribes on the land , they began to invade the surface in order to regain their lost power . The " Vylon " , who were trying to stop another war that was between the " Gem - Knight " and " Laval " tribes . As their leader " Steelswarm Hercules " released his destructive shock - wave on the surface world , the light emitting from " Vylon Omega " prevented the attack of " Steelswarm Hercules " , turning any " Steelswarm " it reached into smithereens and scattering them across the battle field . Playing style . Their main strategy is to take advantage of Tribute Summon ing , which their effects generally support or trigger upon . This is a similar structure to the " Monarchs " - the Steelswarm even have their own version of " Treeborn Frog " ( similar to the " Frog Monarchs " ) . The non - Tribute monsters usually help or support Tribute Summoning , such as being easy to summon , resistant to attacks or having effects that activate when they are Tributed . The main non - Tribute monster is " Steelswarm Scout " which can Special Summon itself from the Graveyard each turn and be Tributed for another Steelswarm . It works similarly to " Treeborn Frog " . All Tribute monsters ( except " Steelswarm Longhorn " ) activate their effect when they are Tribute Summoned and most of them activate their effects by paying 1000 Life Points ; although there are some exceptions , such as " Caucastag ' s " no cost effect , " Hercules ' " half Life Points cost and " Girastag ' s " effect that actually increases your Life Points . Usually , their effects will result in a partial or total field clearing , so they can capitalize with direct attacks . Their first two support cards , " First Step Towards Infestation " and " Infestation Wave " return a selected " Steelswarm " Tribute monster to the player ' s hand . This can be used to reactivate their effects that trigger when they are Tribute Summoned , as well as saving them from destruction effects . Furthermore , the effects can allow to draw an additional card or allow for the destruction of one of your opponent ' s . " Infestation Tool " can help you put " Scout " in your Graveyard and " Infestation Ripples " works like a Trap version of " Monster Reborn " ( although with a 500 Life Points cost ) . Official Konami Decklists . The following Decklists may or may not contain copies of cards that exceed the maximum amount allowed by the current Forbidden & Limited List . These should not be changed , as these Decklists are copied verbatim at the time they were published . Weaknesses . The majority of " Steelswarm " monsters have 0 DEF . Merely putting them into Defense Position with cards such as " Level Limit - Area B " , " Book of Moon " , " Earthquake " and " No Entry ! ! " , along with destroying them in battle , especially with Piercing monsters can really mess up this archetype before " Steelswarm " s can influence the Duel at all . To alleviate this , you can throw in a card like " Darkness Neosphere " to send " Steelswarm monsters to the Graveyard until you can get your " Steelswarm " cards in action as well as have fodder for DARK Attribute support cards . In addition , " Skill Drain " , " Effect Veiler " and / or " Koa ' ki Meiru Doom " can negate the effects of Tribute Summoned " Steelswarms " , " " Forced Back " can stall " Steelswarm " summons in general , " Intercept " can rob you of your Level 5 / 6 " Steelswarm " monsters , " Blast Held by a Tribute " can destroy " Steelswarm " monsters in Attack Position along with dealing Life Point damage to you and " Mask of Restrict " / " Fog King " can lock down " Steelswarm " card effects by preventing Tribute Summons in the first place . This all being noted , " Steelswarm " players should make it high priority to use basic card removal and effect counter cards to negate / destroy any such one that may highly hamper " Steelswarm " monsters . As all " Steelswarm " monsters are Fiend , and rely on tribute summoning to access their best effects , " Zombie World " can quickly ruin this deck by locking out all non - Zombie tribute summons . Due to " Scout " being DARK , a " Koa ' ki Meiru Drago " ( prevents LIGHT and DARK monsters from being special summoned ) can be trouble due to the majority of the Deck being DARK , which in turn will make it hard to create tributes for the Decks stronger monsters . " Blackwing - Jin the Rain Shadow " can possibly prove problematic due to its effect to instantly destroy any monster it battles whose DEF is lower than its ATK . The only " Steelswarm " monster that can battle it without being destroyed is " Steelswarm Gatekeeper " . Finally , " Steelswarm " Tribute Summons can be heftily slowed with " Soul Drain " and " Mind Drain " ; the former can cease the quick Tribute Summon kudos to " Steelswarm Cell " and the latter can do such similarly against " Steelswarm Scout " .