"Geargiano" (ギアギアーノ Giagiāno) is an archetype of EARTH Machine-Type monsters, and a sub-archetype of the "Geargia" archetype. As their name suggests, the archetype's members resemble gears. The members can Special Summon other Machine-Type monsters with their effects, and tend to focus on Xyz Summoning, specially "Gear Gigant X" and "Geargiagear Gigant XG".
Each of the members also has one of their fists in one of the three rock-paper-scissors shapes. "Geargiano" has its in the rock shape, "Geargiano Mk-II" has its in the scissors shape, and "Geargiano Mk-III" in the paper shape.