Please include Crystal type used in the synth.
Include any Key Items and Subcrafts needed.
If the recipe is in the extensive NPC's list, include the item below and above the new item. This will tell us the cap level.
The new item Wyrm Ash is most likely a synth requirement for some or all of these items.
Gerdr Belt/+1
Skrymir Cord/+1
Balder Earring/+1
Aurgelmir Orb/+1