yugioh first starter deck Yugi Card Game but this seems only to have contributed to the phenomenal popularity of the game Unopened Kaiba Starter Deck :

The problem - Tinker allows you to easily put a card into play without paying its casting cost

UR Ultra Rare SE Secret Rare UL Ultimate Rare EXSE Extra Secret Rare CR Collector's Rare QCSE Quarter Century Secret Rare Predaplant Dragostapelia X DARK Level 8 [ PlantFusionEffect ] ATK 2700 DEF 1900 1 Fusion Monster + 1 DARK monster Once per turn (Quick Effect): You can target 1 face-up monster your opponent controls

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This card cannot be Special Summoned except by sending an "Elemental Hero Bubbleman" you control and "Metamorphosis" in your hand to the Graveyard