Ride of the Valkyries [SHVA-EN006] Secret Rare Fiend or 1 "Cyber Dragon" monster

or 1 "Cyber Dragon" monster

"Dark Burning Attack"

return that monster to the hand

Change of Heart

add 1 "Invocation" or "The Book of the Law" from your Deck to your hand

Ride of the Valkyries [SHVA-EN006] Secret Rare Fiend or 1 "Cyber Dragon" monsterSet: Shadows in Valhalla Card type: Normal Spell Rarity: Secret Rare Special Summon any number of Valkyrie monsters with different names from your hand. If you Special Summoned 3 or more monsters with this effect, you take no battle damage until the end of the next turn. During the End Phase of the turn you activated this card, shuffle all monsters you control into the Deck. You can banish this card from your GY; add 1 Mischief of the Time Goddess