Monsters (24):
Evilswarm Castor x3
Steelswarm Diebefly x3*
Steelswarm Caller x3
Steelswarm Cell x2
Evilswarm Kerykeion x2
Steelswarm Termite x1*
Steelswarm Moth x2
Steelswarm Wasp x2*
Steelswarm Girastag x3
Steelswarm Mistkäfer x1*
Steelswarm Hercules x1
Goliath, First of the Steelswarms x1*

Extra Deck (10):
Evilswarm Ophion x3
Evilswarm Bahamut x3
Steelswarm Roach x2
Evilswarm Ouroboros x1
Vylon Disigma

Spells (11):
Abyss of Infestation x3*
Infestation Pandemic x3*
Double Summon x2
Recurring Nightmare x2
Dark Hole x1

Traps (10):
Steelswarm Egg Cluster x3*
Infestation Wave x2
Infestation Infection x2
Mirror Force x1
Deck Devastation Virus x1
Bottomless Trap Hole x1

1. Abyss of Infestation
Type: Field Spell Card
Effect: Face-up "Iswarm" monsters you control gain 500 attack. "Evilswarm" monsters you control are also treated as "Steelswarm" monsters. During your draw phase, you can select one Iswarm or Infestation card in your graveyard and add it to your hand instead of conducting your normal draw. The selected card cannot be set or played this turn.

2. Steelswarm Egg Cluster
Type: Trap Card
Effect: Tribute one Steelswarm monster you control and take damage equal to half its attack. Special summon two "Steelswarm Egg Tokens" (Level 1, Atk/Def: 0/2000). These tokens cannot be used for the summon of another monster, except a "Steelswarm" monster.

3. Goliath, the First Steelswarm
Level 10
Atk/Def: 3500/0
Effect: You can only normal summon this card by tributing three Steelswarm monsters you control. Your opponent cannot activate cards or effects the turn this card is summoned. Once per turn, you can target one Steelswarm monster in your graveyard and special summon it. Then, you can activate its effect (you do not pay the cost, if needed). The special summoned monster cannot attack the turn it is summoned.

Image: Goliath resembles Steelswarm Hercules, but is larger and more fierce looking. Goliath's body is jet black and covered in white markings and patterns, and the Steelswarm crest on his chest burns a bright red color. His head does not have the Stag Beetle design Hercules has, but it does have a large horn resembling. Goliath Beetle's protruding from the front.

4. Steelswarm Diebefly
Fiend/Dark
Level 4
Atk/Def: 1800/0
Effect: You can special summon this card if you control a face-up Steelswarm monster. When this card is tributed for the summon of a Steelswarm monster, select one monster your opponent controls. Its effect is negated, and it loses attack equal to its level x100.

Image: This monster resembles a Robber Fly, but is obviously larger, humanoid, and more monstrous looking.

5. Steelswarm Termite
Fiend/Dark
Level 4
Atk/Def: 1600/0
Effect: When this card is tributed for the summon of a Steelswarm monster, you can place it in your opponent's Spell/Trap Card zone instead. While there, spell and trap cards your opponent activates are negated and destroyed. At the end of your next turn after placing it in your opponent's Spell/Trap Card Zone, send it to the graveyard.

Image: Termite resembles..... a humanoid demon termite. It is bronze in color, with some dark patterns here and there.

6. Steelswarm Wasp
Fiend/Dark
Level 6
Atk/Def: 2600/0
Effect: When this card is summoned by tributing a Steelswarm monster, you can pay 1000 lifepoints and target one monster your opponent controls. Destroy it and inflict damage to your opponent equal to that monsters attack. This card cannot attack this turn if you activate this effect.

Image: Steelswarm Wasp appears like a tall, humanoid wasp. The body form gives away its female gender, and it is mostly pale gold and marked with black patterns. She has two pairs of large insect wings, and bears a large, barbed stinger instead of a flexible tail like other Steelswarms. The Steelswarm crest is located on her abdomen.

7. Steelswarm Scarab
Fiend/Dark
Level 7
Atk/Def: 2700/0
Effect: When this card is summoned by tributing a Steelswarm monster, you can select one Steelsearm monster in your graveyard. That monster's effect is activated, and you gain 1000 lifepoints instead of paying them.

Image: Scarab resembles a fearsome, bulky, humanoid Scarab. Its armor is dark blue in coloration, and it is marked with golden patterns, especially its wings.

Level 10

This card must first me normal summoned by tributing 3 "steelswarm" monsters you control. If you control a face up "Abyss of infestation" this cards normal summon cannot be negated. If this card is normal summoned while "Abyss of infestation" is on the field, you can pay 1000 life points, destroy all other cards on the field. You cannot conduct your battle phase the turn this card is summoned.
Once per turn, you can remove from play 1 card in your hand, then activate the following effect that corresponds to the card-type of the removed from play card.

Spell: Destroy all face-up spell and trap cards on the field.
Trap: Destroy all set spell and trap cards on the field.
Monster: Destroy all face-up monsters on the field, except this card.

This card cannot attack the turn this effect of " Goliath, the first steelswarm" is activated. You can only control 1 "Goliath, the first steelswarm"
2900/0

again, i dont play lswarms, so i dont know if that would even work, but given the other cards, this should be fine, atleast stat-wise.