Laser-Bot

Laser-Bot is one of the Sentient Weapons from Into The Breach.

Strategy
The game flavor dialog makes it sound like these little bots are on your own team. Also since they spawn from the buildings you are to protect, you'd think you should protect them until they can power up. But as soon as they power up, they will attack you and their own structures, so just kill them right away.

Their penetrating lasers allow them to attack many of their own structures in a single turn, instantly losing the game. So be sure to destroy them before they can power up.