Instructions
Play a Petit Moth card at any point in the game. Petite Moth does not require any tributes like some of the evolved forms, such as Larvae Moth, Great Moth and Perfectly Ultimate Great Moth, do. This means you can summon it normally.
Equip a Cocoon of Evolution card to the Petit Moth card. You have the option to do this once you draw the card from your deck. This will raise the stats of the Petit Moth to help protect it during battle.
Place the Petit Moth in defense mode to help keep it from being sent to your Graveyard. After two turns, it evolves into Larvae Moth. After an additional two turns, it will evolve into Great Moth, then Perfectly Ultimate Great Moth after the fifth turn spent on the field.