The +1 is worth a mana and while it might generate value it does not generate any tempo
(1): Until end of turn, Mishra's Factory becomes a 2/2 Assembly-Worker artifact creature
Unfortunately, the cards banned were very expensive, so a lot of collections were negatively impacted by the changes
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"Exodia the Forbidden One" is the oldest and most well-known of these in the game: A player instantly wins if their hand at any point contains "Left Arm of the Forbidden One", "Right Arm of the Forbidden One", "Left Leg of the Forbidden One", "Right Leg of the Forbidden One" and "Exodia the Forbidden One" (head/torso)
He seemed to possess an intuitive understanding of the tournament environment and what to expect from his competitors, and his innovative deck designs in an era preceding the explosion of online content and play still resonate in the metagame