|Race||Harvest golem (Mechanical)|
|Location||Goblin Foundry, The Deadmines|
When damaged to below ~30% health, the golems catch fire allowing players to take control. The fire will slowly damage the golem and eventually destroy it.
- Once controlled by a player.
- Cleave — Inflicts 110% (150%) of normal melee damage to an enemy and its nearest allies, affecting up to 3 targets.
- Energize! — Increases the caster's attack and casting speed by 25% (50%) and the damage it deals by 10% (25%).
- On Fire! — Deals Fire damage every 3 sec. The unit will self-destruct after 30 sec.
- Reaper Strike Melee range — Deals 92 to 107 (13875 to 16125) Physical damage in a cone in front of the Prototype Reaper. Generates 20 steam pressure. Instant (1 sec cooldown)
- Reaper Charge (40 Energy) 8-25 yd range — Charges an enemy, inflicting 185 to 215 (27750 to 32250) Physical damage and stunning the opponent for 4 sec. Instant (1 sec cooldown)
- Pressurized Strike (40 Energy) Melee range — High steam pressure is released into a powerful attack. Deals 138 to 161 (18500 to 21500) Physical damage and knocks the target back. Instant (1 sec cooldown)
- Patch 4.0.3a (2010-11-23): Added.