First, The Absol card is completely playable in decks that have attackers that "hit and run" (move from active to bench). Absol will add an element of disruption that a "hit and run deck" can befit from. With cards, such as, Red Card, Delinquent, etc. being able to randomly discard a resource under tough circumstances that these card force upon your opponent will be critical.
As for the reprint of Base-set Energy, I love it! Those were my favorite Energy cards because of their minimalist design. They have very little details on them, however, they are sleek and to the point--which is why I like them so much. You do not need fancy holographic patters or striking lines, you just need basic, simple looking Energy cards!