By using it with the Mewtwo-EX (62) from the same set, M Mewtwo-EX Y gains access to the powerful Damage Change attack, which switches the damage counters on both active Pokemon
Just be careful with things like Howling Mine or sagas because their triggers happen after the upkeep phase, so it wont work
It beckons silently, waiting in the darkness
The reason is that while other cards stole the real thing from the owner, Stardust only stole the data on a blank card
Thats because Yamato didnt make their first appearance until the thirty first story arc of the One Piece manga

In the end, the championships were won by Ng Yu Leung: Monsters: 2 Don Zaloog 1 Fiber Jar 3 Gemini Elf 1 Jinzo 1 Kycoo the Ghost Destroyer 1 Magician of Faith 3 Mystic Tomato 1 Sangan 1 Sinister Serpent 1 Witch of the Black Forest 1 Yata-Garasu Spells: 1 Change of Heart 1 Confiscation 1 Dark Hole 1 Delinquent Duo 1 Graceful Charity 1 Harpies Feather Duster 1 Heavy Storm 1 Mirage of Nightmare 1 Monster Reborn 3 Mystical Space Typhoon 1 Nobleman of Crossout 1 Pot of Greed 1 Premature Burial 1 Raigeki 1 Snatch Steal 1 The Forceful Sentry Traps: 1 Call of the Haunted 3 Drop Off 1 Imperial Order 1 Mirror Force 1 Ring of Destruction Side Deck: 1 Airknight Parshath 3 Book of Moon 3 Electric Snake 1 Exiled Force 1 Kycoo the Ghost Destroyer 1 Painful Choice 1 Scapegoat 3 Torrential Tribute 1 White Magical Hat The strategy of a Yata-Lock deck was simple, to the point that the sheer power and ease-of-use of the technique was a major contributor as to how this deck so easily rose to its dominant status within competitive Yu-Gi-Oh
