Zoros leader card is known (and highly prized) for its aggressive playstyle
This helps keep the game fresh, players engaged, and collectors interested
Each booster contains borderless cards, showcase cards, gorgeous foils, and a card with a special treatment that celebrates the glory of Phyrexia
As an added bonus, keeping a Garbodor GRI on the Bench could dissuade opponents from playing item cards excessively, for fear of being OHKOed by Garbodor
As for the card prices, you may be able to put some extra dollars/pounds onto the prices shown when selling them but they are not massively rare cards so I would personally advise not to sell them for too much
Today we get an answer thanks to the work of Alex Churchill, an independent researcher and board game designer in Cambridge, UK