The biggest issue here is that Krark, the Thumbless has an ability that flips coins, but doesnt really care about other cards doing the same, so ultimately, it isnt that ideal as a coin flip commander but rather as a spellslinging one
The Standard meta is going to get shook up something fierce with the release of Origins, so anything could happen, but if Nissa pops up at top tables in some early Standard tournaments, I can easily see her pushing the upper limits of standard playable mythics
You want to have it on the table early or to have ways to ramp up the oil counters, but this little card can produce 5/1s or larger hasty trampling tokens you can sacrifice to Fling or Deadly Dispute for bonus value
Its middle ability is a game-winner - literally, who you punched dies, like Phage
Don't need that land
Unlike typical legendary captures, you dont need to throw a Pok Ball