Since each sliver card you play makes all your other slivers exponentially stronger, you can't win the game unless you have a lot of slivers under your command
The drawback of giving your opponent a 3/3 flier probably matters in Constructed formats, but its less of a problem in Commander (see: Swan Song)
Japanese versions had a glossy surface and all languages had a white rarity symbol (, , ) image343478 76.7 KB image180254 22.3 KB image180251 25 KB Platinum era Shinies Part of the "SH" Subset in TPCI sets from Stormfront to Arceus, they were always a fully foil card (mirror foil in TPCI and a glossy surface with a star foil pattern in Japan)
Confining its abilities to sorcery speed hampers its power, but perhaps necessarily
It prefers immediate solutions to problems, using aggressive tactics and direct damage to deal with its foes, while having riskier ways to obtain new cards