Fafnir13
King
Building the wonder enables mercenary production for every civilization but the owning player gets 1/4 of the gold spent on buying the mercenaries. Also essentially lowers the cost of mercenaries by 1/4 for the owning player. Gives the players a sufficient reason to want to build it but won't completely ban a player from that particular strategy of combat.
Thoughts?
Edit:
Apparently I'm not the only one to come up with this idea.
Thoughts?
Edit:
Or keep the world wonder Guild of the Nine and make it give all civs the ability to recruit mercenaries. The owner of the Guild would get 25% of the gold used to recruit them.
That way you get a rebate on any mercenaries bought for yourself, and a great bonus if anyone else overuses mercenaries.
Apparently I'm not the only one to come up with this idea.