Wind-Up

The Mainspring are a series of wind-up toy-like monsters that are premiering in Generation Force.

The effects of the known Mainspring monsters varies from Special Summon and Swarm tactics to Level and ATK manipulation. All of these varied effects help the Mainspring monsters be useful for Synchro Summoning and Exceed Summoning. A downside seen in their effects, however, makes it so that each of them can only use their effect once while they're face-up on the field.