Soft clay is often used by players training Crafting or making urns who do not have the time to collect wet clay themselves. One can cast Humidify on an inventory of clay to turn them into soft clay. Use astral runes and equip a steam battlestaff to maximise profit and efficiency. Set up one of your "Quick Presets" to Withdraw 27 clay and 27 astral runes, cast the Humidify spell, which will cause the whole inventory to turn into soft clay, open the bank, Click the Quick Preset and repeat. When playing at maximum efficiency, up to 400 spells can be cast per hour, for 10,800 clay.