One rare four common-packs feel always quite depressing raritywise, but each card in this pack is a strong one.

Cryptbeetle as a strong low mana battle tank.
Disintegrator as a crucial roleplayer in certain rulesets.
Deeplurker is a powerhouse for clearing the backrow in water splinter.
Goblin Psychic as one of the, if not the, best commons in the set, with three very valuable abilities,who's working great with Obsidian ofc.
Tenyii Striker as a staple in fire melee builds.