Blighted Thornwood Sap From Istaria Lexica Blighted Thornwood Sap Item type: Resource Tier: Tier 6 Ways to obtain[edit] Find ways to obtain "Blighted Thornwood Sap". This section can be empty if it is not available or wiki details are missing. Categories: ResourceTier VIItem Facts... more about "Blighted Thornwood Sap"RDF feedTier6 +