With that, you create infinite mana, and from that many things can be possible: infinite pumping Ezuri, Renegade Leader or Haldir, Lorien Lieutenant, having infinite health from Staff of Domination itself, or infinite Scry in case you have a Paradise Druid on board and Arwen Undomiel
Mono Red can kill the opponents turn one Llanowar Elves on the draw as opposed to play a creature, while Mono White Humans only play is to play the same one-drop creature
No additional notes (as far as I can tell)
Your opponents copy will always resolve first, so keep that in mind when negotiating who you want to target
The cube is all about versatility of spell which burn embodies perfectly by operating as cheap removal early then direct damage as a finisher
With this Shining Legends Pin Collection, you get Zoroark as a never-before-seen foil promo card and an awesome collector's pin