While this effect does have the potential to boost Rascas ATK to 3100 and rip 3 cards from the opponents hand, it requires for you to return cards you control to the deck AND your opponent to have a hand large enough to discard from (not really all that feasible in most duels)
Source: psacard.com Mewtwo, a genetically engineered and powerful Pokmon, was featured in the 1999 Pokmon Base Set
When a monster effect is activated on your opponent's field while you control 2 or more Fusion Monsters (Quick Effect): You can destroy that monster
SR Super Rare UR Ultra Rare SE Secret Rare UL Ultimate Rare PS Platinum Secret Rare CR COLLECTOR'S RARE QCSE Quarter Century Secret Rare Big Welcome Labrynth X TRAP Special Summon 1 "Labrynth" monster from your hand, Deck, or GY, then return 1 monster you control to the hand
Semi-limited allows two copies maximum
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