The Price of Change
The material cost of upgrading a Champion’s essence is relatively small by comparison to the cost of his initial construction. The cost of the transition from Champion to Colossus however is fit to bankrupt nations. For game purposes, it should usually be assumed that a sponsor state manages to make resources (equivalent to at least Wealth ••••) available as needed – it is universally considered to be worth the investment – but such costs can easily strain a state’s economy.
The majority of this cost reflects the physical construction of the Alchemical’s new body, in the form of his first Transfiguration Charm. A Colossus’s first Transfiguration Charm is most often of human body plan, but other variations are available, and he may have more than one at his disposal. Each such Charm bears similar cost to the first however, as do their Essence 7 upgrades, so a Champion and his sponsor state must choose forms wisely.