Generally, poisons such as Instant Poison VI provide rogues with more damage increase then dense sharpening stones. However, certain mobs in MC are immune to poison. Generally mobs in MC are either Humanoids, Giants, Elementals or Beasts. The only type that is immune to poison are elementals, but elementals is also the most frequent type of creatures found in the instance.

You may have asked yourself if it would be wise to switch from poisons to sharpening stones depending on the type of mob that is being fought. Altough it would be possible to switch for each and every mob, it would also be very expensive since the trash mobs are a mix of elementals and other types. But it would still be possible to switch from time to time to optimize dps. The main goal is to use each type of weapon enhancment as long as possible, up to the maximum duration that you can get (usually 30 min). Poison can be replaced with sharpening stones if needed since the cost of poisons is significantly lower then sharpening stones.

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