I think Wizards needs to look at the (1)(U)(G) mana cost as there is also Uro, Titan of Natures Wrath
Otherwise, you need to make the proper selection of cards
Acidic Sliver encourages other players to keep from messing with your Slivers, lest they eat a Shock, Heart Sliver is a cheaper Blur Sliver, and Homing Sliver can help you find the Sliver you need
Perhaps with store credit, that ABUGames copy isnt such a bad deal
As a fun fact, this was the first archetype that I spent a considerable amount of time building in a real life, so I was really excited to see yet another new support card A Cell Recombination Device in the new set, Invasion: Vengeance
Collectors love them not just for rarity, but also for their connection to the late-90s gaming era