Beast Berserker Axe 240-269%

Level 9 Fanaticism Aura When Equipped
+40% Increased Attack Speed
+240-269% Enhanced Damage
+20% Chance of Crushing Blow
+25% Chance of Open Wounds
+3 To Werebear
+3 To Lycanthropy
Prevent Monster Heal
+25-40 To Strength
+10 To Energy
+2 To Mana After Each Kill
Level 13 Summon Grizzly (5 Charges)

Beast is the rune word 'BerTirUmMalLum' for axes, scepters, or hammers in Diablo II: Lord of Destruction.

Beast is a rune word typical for characters who use their basic attack as their damage output. With bear form, increased health and defense is always a bonus, on top of the Fanaticism aura.

It is commonly also used for Necromancers who depend on their minions.