Dinoster Power, the Mighty Dracoslayer [BOSH-EN046] Rare BT2-037 You can only use each

You can only use each effect of "Elemental HERO Honest Neos" once per turn

Set: Legendary Dragon Decks Card type: Normal Spell Rarity: Common (This card is also always treated as "Legendary Dragon Timaeus"

This effect can be used only once during the current Duel

You must also Tribute Pendulum Monsters from your hand or field whose total Levels equal or exceed the Level of the Ritual Monster you Ritual Summon

Dominaria (Scalding Tarn)

Dinoster Power, the Mighty Dracoslayer [BOSH-EN046] Rare BT2-037 You can only use eachSet: Breakers of Shadow Card type: Fusion Effect Monster Rarity: Rare Attack: 2000 Defense: 2950 1 "Dracoslayer" Pendulum Monster + 1 Pendulum Monster Must first be Special Summoned (from your Extra Deck) by Tributing the above cards. (You do not use "Polymerization".) Pendulum Monster Cards in your Monster Zones and Pendulum Zones cannot be destroyed by battle or your opponent's card effects. Once per turn: You can Special Summon 1 "Dracoslayer"