Best SinX Grimtooth Build (ROOC) | Full Guide (Skills, Gear & Tips)

Summary

A SinX Grimtooth build guide that gives Assassin Cross players a route-specific alternative to Sonic Blow and general PvP setups. It is useful for understanding a different damage pattern and content fit.

Best for

Assassin Cross players considering Grimtooth and wanting a focused guide before shifting gear or skill priorities.

Our take

This improves the Assassin Cross section because route variety matters. Use it as the Grimtooth reference, then compare with Sonic Blow and PvP guides before choosing your long-term SinX identity.

How to use this guide

Use this as a PvE reference for Assassin Cross, but copy the decision logic before copying the exact numbers. ROOC builds can change quickly when server level, refine access, card supply, and guild PvP priorities move.

For this guide, pay special attention to damage timing, target selection, and stat efficiency. If your account is newer, under-geared, or mostly F2P, follow the cheaper stat, skill, and gear priorities first, then treat expensive upgrades as later optimizations.