Evilswarm Deck

Don't get on me about the Rabbit-Heliotrope combo. Evilswarms kick butt

Monsters:
x3 Evilswarm Mandragora
x1 Evilswarm Kerykeon
x3 Evilswarm Salamandra
x1 Dark Armed Dragon
x3 Evilswarm Castor
x3 Evilswarm O'Lantern
x1 Gorz, the Emissary of Darkness

Spells:
x3 Infestation Pandemic
x1 Allure of Darkness
x2 Mystical Space Typhoon
x2 Mystic Plasma Zone
x1 Dark Hole
x2 Terraforming
x3 Creeping Darkness
x1 Book of Moon

Traps:
x3 Infestation Infection
x3 Dark Illusion
x3 Dark Bribe
x3 Call of the Haunted
x1 Bottomless Trap Hole
x1 Mirror Force
x1 Torrential Tribute X

Extra Deck:
x3 Evilswarm Ophion
x3 Evilswarm Bahamut
x3 Evilswarm Ouroboros
x2 Number 66: Master Key Beetle
x1 Lavalval Chain
x1 Number 50: Blackship of Corn

okay, if not rabbit/heliotrope:

you might want thunderbird and more kerykeion

also, maxx c / forbidden dress / safe zone / upstart goblin

3x each evilswarm dragon is maybe too much, cards like papilloperative, cowboy can just win you games from nowhere

Triple infection is too much, you can just run 1 in favor of other traps, due to it being searchable. Mystic Plasma Zone and Terraforming and also Dark Illusion is also not needed, you can add some of Ash's suggestion over them.

dark illusion is good

Wait which one is dark illusion?

Oh, das is gud.