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Shuffle up to three target cards from your graveyard into your library

I made a Valkyrie Deck recently, so I was in the mood for some Fairy monster making, and here we got a pretty simple Tuner, which is able to bring itself out after a battle, and is able to Synchro Summon during the Battle Phase, it's completely generic, making it not only useful in Valkyrie, but pretty much in any Deck that can or wants to Synchro Summon, and makes it a great tool for getting in a new monster to attack with in the Battle Phase

Ruby, Daring Tracker

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Those factors keep it from being awful and tells us what good Exploit filler can be