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With current prices, this Umbreon card is more desirable for collecting rather than playing Pokmon cards

Some also like to include a small Destiny HERO - Destroyer Phoenix Enforcer package, since it requires minimal Main Deck additions and provides a powerful form of disruption not readily available to Swordsoul otherwise

Furthermore, despite being a deck with Normal Summoning dependent effects, it still requires Special Summoning for most of its plays and is thus enormously vulnerable against effects that restrict that like "El Shaddoll Winda"

Sadly, for now, well just have to wait for more information to know exactly whats going on