For bringing him 20 bags of it, he will give you a Crab Dung Potion, permanently increasing the damage of whoever drinks it by 10.

Even though you can find over 40, there doesnt seem to be a way to get a second potion.

For any dung you have in excess of 20, Pavon will simply pay you 25g per bag when you deliver the quest, along with the 500g base reward.

You may be surprised by how many environments crabs can thrive and poop in.

These would feature an extremely strong effect that usually enhances aspects from both trees.

Between each of the two ability trees there exists a synergy ability that will be available.

Those synergy abilities are particularly strong and focus on enhancing both ability trees or by drawing power from both trees passive perks.

Passively, melee strikes will apply Fire Might for a briefly that will improve the next fire-based ability.

If the target is living the damage is massively increased and dealt as pure damage.

Towards undead and demonic targets the damage is increased and dealt as pure damage.

Also using this ability against a frozen target will kill it immediately.

Duration is increased and the empower effects potency is increased.

When being damaged while health is below a threshold, nearby enemies are damaged.

Bonus damage is applied to ice creatures and oiled enemies are being ignited.

It will deal double damage against ice creatures and will ignite already oiled targets.

The demon gradually loses health, but restores some with each kill.

Spellforce 3 Soul Harvest Walkthrough