1st edition pokemon booster box Gym Heroes - Pokemon Base Set (Shadowless) [1st

The campaigns function independently of each other, so you can purchase any that suit your interest

You play a certain number of counterspells in decks that want them as they are decent coverall security and disruption however Spell Snare is too limited in its targets to be a good coverall or security card

Extus, Oriq Overlord / Awaken the Blood Avatar Extus, Oriq Overlord is all about spell-slinging valueevery instant or sorcery you cast brings a creature back to your hand from the graveyard

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That said, this cards potential is limitless

Doubling Season would be higher on the list, but getting your doubler effect out a turn earlier, at 4 mana, is huge for the previously mentioned cards