[Non-Renewal] Help me pls with SinX build and equips

[Reaper75]

Im playing on high rate lv 99/70 max stats 99 ragnarok server.
MVP cards, battleground, godly items are disabled.
Im going to play Sinx. Im planning to play with katar.
Whats better critical spamming or SB build??
Can anyone give me the information of the equips and stats for those builds?
Without mvp equipment drop

Thanks before