Whirling Twirligig (022/167) [Radiance]

Exhaust: Play a Gold gear token exhausted. (It has "[Reaction] Kill this, Exhaust: [Add] 1 Rune.")
Kill a friendly gear, Exhaust: Play a 1 Might Recruit unit token.
Kill a friendly unit, Exhaust: Play a 3 Might Mech unit token.