I used it because it worked well with getting the energy type I needed and gave me more search options
PSA 10 gem mint specimens represent the premium tier for this rare eevee card
Efficiency can be determined simply by the reward you receive at certain mana costs (Counterspell and Cancel do the same thing, but Counterspell costs less), the total payoff you receive from a single card (Hull Breach and Decimate are both good cards, but Decimate usually covers much more ground), or the payoff you receive in conjunction with other cards (Anointed Procession makes other token production cards completely absurd if unchecked, which is usually better than adding one more card that simply makes tokens like Spectral Procession in a token strategy)
Returning in this set are two powerful Constructed graveyard cards in Stitcher's Supplier and Priest of Fell Rites, both of which are returnable by Terra, but also help you progress your gameplan with incredible ease and efficiency
Whether you want to hold off a counterspell, trigger your own leaves the battlefield trigger or just need to get past a blocker, this Aang knows how to save the day
