In practice, this meant games were essentially a race to Lin Sivvi, and whoever would play their copy first would lock their opponent out of playing their Lin Sivvi, which allowed the first player to tutor up a bunch of Rebels and win the game
etc.) We will design both, general and "Commander Adventures"-specific Achievement Point System cards so you can use this system even without playing CA
The fact that replaces itself at instant speed means you can cycle it when its not needed, for just two mana
There are plenty of activated abilities on artifacts worth copying, like Kuldotha Forgemaster and Magistrate's Scepter
One of Magic s core rules is that each player may only play one land each turn
It has spawned new combos (namely with Demonic Consultation and Tainted Pact) and provided existing decks with a strict upgrade to the old staple