This normal seeming mob drops this as a rare drop (I just got it)
Wyvern Bone Ring
MAGIC ITEM LORE ITEM NO TRADE
Slot: EAR
AC: 14
STA: +15 CHA: +10 AGI: +20 HP: +110 MANA: +110 ENDUR: +110
SV DISEASE: +15 SV COLD: +10 SV POISON: +10
Attack: +15
Required level of 60.
Focus: Mana Preservation IV
WT: 0.6 Size: SMALL
Class: ALL
Race: ALL
Slot 1, Type 7 (General: Group)