This doesnt have the most impressive stats around, but since it is a 4/4 with Pack Tactics, it doesnt need a whole lot of help to trigger it, and when you do, it will feel pretty good -- flinging something at one of your opponents creatures can be a pretty good ability, though it isnt the kind that youll always be able to make use of
That may sound slow, but assuming youve also got a few one mana creatures like Ruin Crab, which mills whenever you play a land, and maybe a couple of copies of Tashas Hideous Laughter, then you can easily take someone out by turn six or so with this strategy
Genesis Chamber is another great Myr token generator
Drawing up to three cards per combat in a 4-play game is a nice incentive for playing with rogues, which lend themselves to dealing combat damage often
What makes this card a homerun is the reverse side: Explore the Vastlands is a group hug card, and it can catch up the players who are having a rough game
You have access to toxic right out of the command zone, its a 2-mana commander, and you can start infecting people early in the game