Quite honestly, I think the idea is hugely OP. Instakill on a stick costs one death or earth? Yes, it turns to a pillar, but that insane 70/60 Chimera now is a gravity pillar. Ow. Granted, a Maxwell's Demon would kill said Chimera too, but it couldn't touch it if it were 20/499. This card wouldn't care. It's cheaper to boot. Maybe a two-turn stall would be better.