Balance the Morghoul ears

[Entheogen]

Currently they are extremely common and are casting a level 9 acid sheath dealing 1d6 +18 damage per hit. This is going to unbalance PvP as such a common expendable item and potentially some boss encounters where creatures are meant to be harder to hit but are now smacking themselves for 60+ dmg a round with 3 APR.

[el groso]

Although I agree that Morghoul Ears can be strong, they have become very rare after some recent changes on loot table, also they cannot be used by all types of PCs. So, I wouldn't go as far as to say they are a common expandable item