Lava Spawn (Warcraft III)

The Lava Spawn is summoned by the Firelord.

Information
Upon the Lava Spawn's 15th attack, it will replicate, splitting itself into two Lava Spawns. This process takes 5 seconds. After a successful split, 12 seconds are added to the remaining timed life of the units.

A Lava Spawn can split multiple times, potentially resulting in a sizable force of them.