Together with starting loyalty and plusses, they make up the play pattern of your planeswalker way more than anything else
Go-wide tokens flood the board until your opponents cant keep up
And of course, we have some wildcards, like Runo Stromkirk or Verrak, Warped Sengir that dont quite hit the same flavor, but that just gives the list some variety
Then create a 1/1 white Monk creature token with prowess for each rally counter on it
Coming down as a hasty 5/5 for means you can deal some damage right away, but its the random options that can truly swing a game: putting three +1/+1 counters on target creature, putting a shield counter on target creature and gaining three life, or fighting another target creature a foe controls
The two signpost gold uncommons, Rocketeer Boostbuggy and Boom Scholar, exemplify this strategy, allowing you to burn everything in the tank for powerful upgrades to your creatures