"Infestation", known as "of Invasion" ( (しん) (りゃく) Shinryaku no) in the OCG, is an archetype of Spell and Trap Cards that support the "lswarm" archetype. It is supported solely by "Evilswarm Ophion".

Due to its Japanese name, "Invasion of Flames" is part of this archetype. However, since the only support card for this archetype specifies Spell/Trap Cards in the Deck, this has never been an issue.

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