Bartuc is an undead uberboss located in the Chamber of Blood, accompanied by Blood Golems. He is the subject of the Legacy of Blood uberquest, and drops the charm of the same name when killed. He is only vulnerable after attacking with Wychwind.
Bartuc, the Warlord of Blood, was once Horazon's brother in the Vizjerei mage clan. Whereas Horazon wanted to summon demons to enslave them, Bartuc chose to worship them and traded his soul for demonic power. Their conflict eventually led to a civil war that shattered the mage clan. Although Bartuc was eventually destroyed by the very powers he sought to control, his soul and power have been claimed by the forces of Hell. It may be possible to find Bartuc's spirit in the crypt where his cursed armour was buried...
AR means Attack Rating.
Attack 1 AR
Attack 2 AR
Regen Rate tells what % of a monster's hit points are recovered per second.
Blocked attacks will not damage the monster. Monsters need not carry a shield to block.
Avoided attacks will not damage the monster.
Drain Effectiveness tells what % of a character's mana and life steal apply to that monster. 100 is all, 0 is none.
The chill effectiveness on almost all monsters is -20%, regardless the difficulty.
Resistances over 99% are listed as immunities and monsters will take no damage from that type of attack.
Immunities can be "broken" by skills that lower resistance, if the value drops below 99%. See the Resistances page for more details.