I wouldnt tunnel in on Grixis too early, but if you are drafting blue/red and havent seen any good payoffs, consider picking black removal and going the Grixis direction
Loads of players have been doing it, including Commander Advisory Group member Olivia-Gobert Hicks, Commander Vs
Overkill is a nice, clean answer to just about everything in Final Fantasy Limited, and its even splashable
Alternatively, you could use Freed or Aura or another similar card to untap a creature like Stone-Seeder Hierophant or Bloom Dryad to untap a bounceland like Azorius Chancery
Seriously, from two Eldrazi titans stitched together, to Lhurgoyf tribal, to 'everything counters', these guys have to be seen to be believed
Now, a 2/2 artifact creature for 3 mana does not fit every deck, so the idea that you should be playing them in every single multiplayer and/or Commander deck is silly