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Based on some Real Time Strategy games, where there are specific units who can take control over enemy units. From the original Age of Empires, we have the priests.
Priests are known by their ability to heal friendly units and convert enemy units, however they're fragile and slow. They're best to use in groups against other slow units, like war elephants.

There, later, came other similar units who have the conversion ability. Monks and Missionaries(AoE 2), the "Traitor" God Power in Age of Mythology's expansion (you have to select an unit for so, though), Banshees and the Dark Ranger tabern hero in Warcraft 3, and others.

On a side note, "Wololo" is a meme that came from Age of Empires, where priests debuted.
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