From: KanzarisKelshen | #216
Crit is a terrible stat on Sivir Baku. She's still best if she stacks five 'Thirsters, optimally speaking.
Also W is obviously better, don't get AS (Zerkers plus OTH plus auto reset = you're The Flash when it comes to smacking things up), and seriously consider Rivenbuilding if you can. She's still a crazy farmer so it should be g2g.
Let me reverse the first thing I said. Didn't know Ricochet could crit when I did! So her best build is DEFINITELY bruisery with IE and Atma's I think.
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Sburbopolis, Homestuck RPG: http://www.gamefaqs.com/boards/8-gamefaqs-contests/60981373