This card has maintained a high price point on Magic Online for a while based on its high level of play, but that same enthusiasm has mostly not yet transferred to the paper version of this card
With your current hand, you can do everything from adding Pokmon to your bench to retreating your active Pokmon to your bench to attaching an Energy card to a Pokmon to playing your Trainer cards
When in battle, HP is displayed by the horizontal bar which goes from green to yellow to red
Its Max Speed ability isnt super-relevant, but Haste is always nice later on
Also, beware of Mardu Siegebreaker: Its a really good card, but you wont want to exile a mobilize creature with it
Skullclamp, Secret Rendezvous, and Coveted Jewel are a couple of other ways to keep your hand full