31 Planeswalkers make or deal with tokens, so the two abilities seem well paired: token-based planeswalker/creature midrange. This card is very good. It's good early, allowing you to ramp out your most powerful threats, and it's good late, allowing you to pump up the board you've been developing in the earlier game. I'd call it pushed, partly because multicolor doesn't do nearly as much to balance it as I feel development sometimes hopes.
It also definitely passes the "acceptable power level with zero walkers" test, which I very much like. Too bad it's multicolor, where competition is fierce.
Strike against it is that I generally don't want to push planeswalkers, they push themselves plenty.
Edit: also 21 of 21
walkers have the word "creature" in their text