Fiend's Sanctuary [BP01-EN076] Starfoil Rare Stardust Overdrive When you Ritual Summon

When you Ritual Summon

when a monster(s) on the field is destroyed by battle or card effect: You can Special Summon Level 4 or lower "lswarm" monsters from your Deck in Defense Position

You can only use each effect of "Prank-Kids Rocket Ride" once per turn

along with how they acquired the imperial treasures

Fiend's Sanctuary [BP01-EN076] Starfoil Rare Stardust Overdrive When you Ritual SummonSet: Battle Pack: Epic Dawn Card type: Normal Spell Rarity: Starfoil Rare Special Summon 1 "Metal Fiend Token" (Fiend Type DARK Level 1 ATK 0 DEF 0). It cannot attack. Your opponent takes any battle damage you would have taken from battles involving it. During each of your Standby Phases, pay 1000 Life Points or destroy the "Metal Fiend Token.