So Avatar gave me this idea for mages....

This idea should be interesting =)

In KoL, there are two moons that go in cycles. Depending on the phases of the moon, you could do interesting things that you couldn't do normally, or certain aspects are affected. For example, the Grue familiar becomes crazy powerful when both moons are in total darkness.

KoL is a mostly single player game. The only real multiplayer is chat, the one clan dungeon, and in the market (the PvP is lol and doesn't count), and moon phases don't affect either aspect. Boosts like these work better for single player than multiplayer games.