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
Splitskin Doll is one of the simplest, a 2/1 creature that lets you draw an extra card when it enters play, though it also forces you to discard one unless you control another creature with 2 or less power
So far so narrow, but one silver lining for Righteous Hunt is its Blessed trait, which puts it in the cardpool of Father Mateo
I went through the Premodern card list, and Verdant Force really is the best thing you can get
If your opponent activates a card or effect in response to your "P.U.N.K." card or effect's activation and this card is in your GY: You can Special Summon this card
It is better at getting you out of a screw than Top or a Brainstorm but it is painfully slow to do so compared with something more humble like a Preordain