Currently, whilst planets degrade, they can be permanently protected(merlins), so there is no risk of losing those which you have. If this was not the case, I think there would be less of a chance of flooding, and duals that do exist would be taken more often, resulting in their degradation to singles.
My thought would be something along the lines of, when you spy someone, you have some chance, with each planet, of seeing it, even merlined. Say it is 5% per planet. Then, perhaps from the log that showed a merlined planet, you can engage the planet, as you now know which dimension it currently exists in, for a period of say an hour. To compensate for the planets now being target-able, adjust the engage threshold for merlined planet seen in spy logs, from a minimum 15% planet defenses, to 25%. That way merlins still maintain a fair amount of power, but they don't provide impenetrable protection.
I imagine I'll get alot of objection from those with stats in the quadrillions, but didn't Jason say upon their introduction, that they weren't meant to be permanent?
And again hereGame Updates - July 1st 2006 wrote:The concept is that planets are powerful, but are also hard and expensive to keep. The more time that goes on, the better the planets able to be taken will get. But the better they are, the more people will want to take them from you so do not expect to hold onto planets forever!
Game Updates - July 13th 2006 wrote:Remember, planets are not meant to be kept forever.