Grixis combines red, black, and blue in what is commonly called a shard. These three colors allow for a weird mix of chaos and control strategies, upsetting your opponents' games while keeping your own on track as much as possible
After that, its up to us to make our best use of them
Single Combat Single Combat works best in Voltron-style decks that focus on making one creature the best it can be
:\ So there you have part one of the big Naya review
Siona, Captain of the Pyleas is another choice at the top end of our shallow mana curve, but she provides a lot of value in retrieving a choice aura and then giving us fodder to sacrifice to our opponents, such as Doom Foretold
Later in the game, Glowspore Shaman can protect you from flooding since you dont have to put those lands back on top of your deck