Onyx Golems

Onyx golems are immune to weapons of less than +2 enchantment and possess a 50% immunity to nature-based magic. They are alse completely immune to acid- and heat-based attacks, and take half damage from electrical attacks.

Combat: Onyx golems strike with their fists. For purposes of lifting, breaking and throwing. Onyx golems have an effective Strength of 22. Three times per day, an onyx golem can cast a Mass Dismissal spell which will send all summoned creatures within 120' back to the plane they originated from. Once per day, an onyx golem can perform a Mass Control Transferal spell which will transfer control of all summoned creatures within 120' to them.

Shatter inflicts 4d6 points of damage on emerald golems, while crystalbrittle eliminates their immunity to magic and causes them to be vulnerable to +1, rather than +2, weapons. A mending spell restores 2d6 lost hit points, while glassteel completely restores all damage inflicted upon them.

Special Combat: Each of the 3 onyx golems encountered in the throne room of the Guarded Heart have special combat abilities. The onyx golem with the white rose has access to all spells of all schools at all levels, yet must roll randomly to determine which level the spell it has access to for the round will be. Determining the level of the spell counts as a simple action and thus the spell can be cast on the same round which which it is fetched. The onyx with the book takes no hostile action against the party yet will constantly buff / heal the other 2 onyx golems. The onyx with the sword acts as a master swordsman. It can attack 3 times per round dealing 2d10+3 damage with each attack.

Ecology: When finally slain, gemstone golems collapse into piles of rough-cut gems identical to their type. Each golem produces 10d10 gems of the precious category, with values determined using Table 86 in the DMG. The remainder is powder, useless for most purposes, though some wizards and alchemists may be able to use it for spell components.

Additional Treasure: The 3 tools the onyx golems use to attack offer the following bonuses to their wielders.

White Rose: Access to all spells of all schools of any level, yet the level is randomly determined based on die roll. The act of determining level and "fetching" the spell is a simple action and thus a spell can be cast on the same round that it is "fetched".

Book: Access to all healing spells of any level, yet the level is randomly determined based on die roll. The act of determining level and "fetching" the spell is a simple action and thus a spell can be cast on the same round that it is "fetched".

Sword: +3 weapon. Instills the wielder with the knowledge of a master swordsman. Anyone wielding this weapon can attack as if they were a master in it regardless of class or level.