Tainted Grail: Conquest

This will require several runs to complete, as you need to encounter a specific NPC multiple times.First talk to the Mysterious Witch, who will ask you to help out a man in the Wyrd with a candle. When you encounter this NPC, he will ask for a Wyrdcandle. Give it to him, several times and the choose the "You need to proceed with your journey dialogue". Then go back to the Witch twice, then invite her to join your village. After this, you unlock the option to summon the Wolf through the lost soul in the village. I believe you can also find it in the Wyrd after this point, where it will fight alongside you, as a poor minion that does barely any damage and has negligible health.