yugioh 2011 dragon deck Konami Yu-Gi-Oh! Eleven years later in Breakers of Shadow All 6 XYZ Worlds Cards

Successfully perform a Synchro Summon against Luna while using Leo

Considering every other card is underwhelming when placed next to "Valkyria, Guardian of the Spell Force", I suppose this is alright, and considering the Costs of Discarding will prime you to Special Summon the Dark Magicians, there's not too much to complain about, though they're mostly Dead Ends, completely overshadowed by the "Valkyria" line

Afterwards, the turn player adds their optional effects in any order, and finally the opponent adds their optional effects in any order

Competitive Player: Research the meta and decide which deck you want to go for

Bar some of the Extra Deck monsters and staple cards, much of the deck is also low-rarity, a boost for players on a budget