SCH needs help

[Volkaj]

There is no opportunity cost if there is no Astrologian in the party.

When an option is chosen from alternatives, the opportunity cost is the "cost" incurred by not enjoying the benefit associated with the best alternative choice. The New Oxford American Dictionary defines it as "the loss of potential gain from other alternatives when one alternative is chosen."

Source: https://en.wikipedia.org/wiki/Opportunity_cost

If you use one AF on Sacred Soil, you lose on using Energy Drain (150p). Having an AST around doesn't change this.