rivals of ixalan mtg cards Booster Pack you get the citys blessing for the rest of the game.) Each opponent sacrifices a creature Forerunner Of The Empire Polyraptor

The many races of Men that ally with Sauron can easily swing black or red, and the relentless ethereal might of the Nazgul feels right on point for blue-black

Playing Jumpstart is the fastest way to get playing with MTG once you already know how to play, in a way that levels the playing field and ensures that players cant just buy their way to victory

Another good addition is Guardian of Faith since its phasing out ability wont kill your tokens the way exiling and returning to the battlefield would

Look at Lightning Bolt or Abrupt Decay and their influence on shaping the eternal formats

Then you can tap artifacts you control to help pay that cost

This is just classic Grixis Maestros