core set 2015 booster box Magic Packaging card Waste Not Magic 2015 Core Set (m15):

Doppelwarrior X DARK Level 2 [ Warrior / Effect ] ATK 800 DEF 800 When a monster(s) is Special Summoned from your GY (except during the Damage Step): You can Special Summon this card from your hand

You can attach water energy to any Pokmon so, in turn, you can heal 40 HP to any Pokmon card, which could make the difference between winning or losing in tight battles

Deck from the collection of @linkdu83

Trading Card Game Strategy Site in 2015, written by by Konami R&D Specialist Jerome McHale

Like all the other beginner-friendly decks, this one also ditches the deck-building hassle and comes with a complete preconstructed 60-card deck right out of the box