|Location||Players via summoning|
This requires a Summoning level of 92 and a Wolpertinger pouch to summon. The Wolpertinger can fight in combat alongside you providing you're in multi-combat and also engaging other players (note also that familiars do not get involved unless their masters are attacked first).
The Wolpertinger grants the following bonuses: an invisible +5 Hunter boost, +5% defence against magical damage, and double experience and yield when harvesting berries. The Wolpertinger's scroll, Magic Focus, also provides an invisible +7 bonus to your Magic level.