mtg planeswalker deck commander Magic The Gathering Masters Commander Party Keep your guard up with defensive spells Planeswalker Commanders

The worst offenders of this chaotic pricing that have been seen so far are March of the Machines serialized Praetors

(If this creature isn't monstrous, put X +1/+1 counters on it and it becomes monstrous.) Market price $0.39 Based on the latest market prices tracked on TCG Stacked

What will shake up the format the most

As one Magic Twitter account slyly referenced in their obituary for the elemental ( Oh, and it draws a card. ), the elemental features a broad, explosive selection of payoffs, with zero drawbacks or requirements which would seem to balance it especially in a format starring Fabled Passage

This was released in December 2015 as a freemium game and continues to be updated with new card sets from the physical game