Small World
How much does a Necromancer ghost or special power cost to buy?
One reply explains the cost; it matches the Necromancer Island rulebook's purchase rule, and no designer reply is cited.
- macron · Community · 2010-11-09
A new Ghost or Special Power costs as many coins as the number of Special Powers you already use plus the number of Ghosts on the map, Island included but not the Well of Souls. With 4 Ghosts and 1 power, the next one costs 5, then 6. You may buy as many as you can afford.