As long as he has at least a single Wound remaining, at the beginning of each of his turns, Thanquol can use the amulet to heal himself. On a roll of 5+ Thanquol regains a single Wound.
Source: Warhammer Fantasy: 8th Edition
As long as he has at least a single Wound remaining, at the beginning of each of his turns, Thanquol can use the amulet to heal himself. On a roll of 5+ Thanquol regains a single Wound.