The energy card helps to retreat a Pokemon, and it is hard or even not possible to retreat them without the energy
It is also better when a Jar just has a funnier effect that you want to see resolve for the giggles
If you attach it to a location, when an enemy tries to move to the enemy stage, it will move towards the location where this card is attached instead of where it originally intended to move
This March of the Machine Commander Deck set includes 1 ready-to-play deck of 100 Magic cards (2 Traditional Foil Legendary cards, 98 nonfoil cards), 10 specialty cards, a 2-card Collector Booster Sample Pack, 1 Foil-Etched Display Commander (a thick cardstock copy of the commander card with foil etched into the cards border and art), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 special die, 1 strategy insert, and 1 reference card
You'll normally be winning games through combat by playing high-power creatures
As the show was essentially a big commercial for the card game, the filler allowed for new cards to be showcased without having to clumsily introduce them as part of the original plot