OK, its Friday so it is time for something completely off the wall. This is NOT, I repeat, NOT a serious post. Mods posting this here since it is supposed to be tongue-in-cheek.
I think we should have a Guardian Guardian. The purpose of the Guardian Guardian is to reduce the cooldown time of any and all guardians, currently in cooldown. Once all of the puzzle pieces have been removed it takes 1 gold to activate.
Sounds great, huh?! I think that all of the current guardians have hard to pronounce names, so I propose a name like Bob, Fred, Joe, Mary, or Sue.
Now since we can't just give away the planet with this obviously OP guardian it will be the puzzle pieces that make this guardian hard to get. Since the guardian's power is all about cooldown time, the first piece will simply take 2 days before it can be collected. the second piece can be collected two days after that. The 3rd and 4th pieces will take 4 days each before they can be collected. Below is a table of the days and eventually years that will be required to complete the Guardian Guardian.