TechsThe Rotor is Heavensteel's air chaff: a squad of 12 small quad-rotor gun drones (622 hp each, 1.6 tiles a second) bought for 275 after a 50 unlock. Eleven of the eighteen launch units can't shoot air at all, so against a ground army the cloud flies over the front line untouched and picks apart whatever it reaches, 202 damage per 4-round burst every 1.4 s from 5 tiles at ground or air: it beats the Skitter, Ridgeback, Cutter, Torch, Aurochs, Anvil, Weaver, Salvo, Breaker and even the anti-air Seraph, but it can't finish a Landship before the timer. It loses to anti-air: the Hexguard, Courser, Heron, Mirage and Dreadnought all beat it, so scout the enemy's anti-air before you buy, deploy it on the flank they can't cover and send it at artillery like the Salvo. Strafing Run triples its damage against ground (202 → 606) and makes it a ground-attack squad; Shield Cell adds 622 shield, doubling what anti-air has to chew through; Long Barrels (range 5 → 9) and Heavy Plating (+40% hp, 60 flat block) keep it alive against short guns. Lyra Solenne, one of the four commanders, opens with a Rotor squad beside a Cutter. In battle the whole drone turns to aim at 120°/s and the pod pitches -12° to +20°; here it is held level on its stand.