Should you play Jim, you may gain an additional Pirate card for your hand, giving you more opportunity to experiment
The really big innovation was the return of Planechase, an EDH-only mechanic that sees players hopping around the MTG multiverse for different effects
Players can collect the plastic booster pack wrappers, which almost all of MTGs cards use as packaging, and toss them in this Terracycle and Wizards-branded box in lieu of a trash can
Then you can activate Vivi once during your turn to generate some number of blue and/or red mana equal to Vivi's power, which should help you keep chaining spells together or cast a really big one
You can check out my author page for the 10 monocolor, 10 color-pair, 10 tricolor (plus one bonus list), two rainbow, and four-color lists
End of story