Sol Ring [Kaladesh Inventions] 145 You can only use each

You can only use each effect of "Duoterion" once per turn

Set: Miscellaneous Sealed Release Date: 2021-12-03 Masters of Fire—Flareon VMAX

Set: Extreme Force Sealed Release Date: 2018-02-02 Extreme Force features a number of powerful cards that Duelists can add to any Deck

Which tell us the way to go

Fusion Monsters that list "Elemental Hero Neos" as a Fusion Material Monster do not have to have their effects activated that return them to the Fusion Deck during the End Phase

Sol Ring [Kaladesh Inventions] 145 You can only use eachSet: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {1} {T}: Add {C}{C}. It took the reclusive Venya Sangmi a lifetime to realize her childhood vision: a band of sunlight made solid.