The bite of a Wolfwalker has cursed you, granting you the following traits:

• Increase your Wisdom score by 1, to a maximum of 20.
• You partially become a fey:  you gain vulnerability to Bludgeoning, Piercing, and Slashing damage from Nonmagical Attacks from Silvered and Iron weapons. Those metals feel scalding hot at your touch.
• Each time you fall asleep, your spirit takes the form of a Dire Wolf. You gain the stat block of the Dire Wolf, but you maintain your total HP, Intelligence, Wisdom and Charisma scores. You appear within 5 ft. from your body. While in wolf form, you cannot speak; you can, however, speak with other wolves. While in wolf form, you acquire the following flaw: "I am extremely curious, and I get bored incredibly easily". Damage you take while in wolf form is instantly transferred to your original body, and vice versa. Each creature you bite while in wolf form acquires this same feat, becoming a Wolfwalker itself.
• Each time you fall asleep, you cannot wake up again unless your spirit in wolf form is within 5 ft. from your body.
• You can spend 1 night in the wilds to acquire a wolf pack. The pack is friendly to you and your companions and obeys your commands. See the pack's game statistics in the Wolf Pack stat block, which uses your proficiency bonus (PB) in several places. The pack size equals to twice your PB of individual wolves. 

In combat, the Wolf Pack shares your initiative count, but it takes its turn immediately after yours. The only action it takes on its turn is the Dodge action, unless you take a bonus action on your turn to command it to take another action. That action can be one in its stat block or some other action. If you are incapacitated, the Wolf Pack can take any action of its choice, not just Dodge.

• You learn the cure wounds spell. You can cast this spell at level 1 without expending a spell slot. Once you cast the spell in this way, you can’t cast it in this way again until you finish a short rest. This spells’ spellcasting ability is Wisdom.
• If your Wolf Pack is with you, it can use its help action to add its proficiency bonus to the level at which you can cast the cure wounds spell.