From The Heroes of Might and Magic III wiki
|Effect: When equipped, Titan's Cuirass increases hero's power skill by +10, but reduces knowledge skill by -2.|
Titan's Cuirass is a relic class artifact, that is equipped in torso slot. While equipped, the armor increases hero's Power by +10 but also decreases hero's Knowledge by -2. Relic class artifacts cannot be purchased from Artifact Merchants.