What's a good GS clickie item to make?

[knightgf]

Alright, I'm thinking about making a custom GS item: One that has a clickie and greater regeneration just for the heck of it. Conc. Opp. is definately out of the factor since I dont gain any benefits for the effort. In particular, there are a few clickies I like and want to know if any of them are worth it or just plain garbage. The ones I want to know more about are:

Earth + Earth: I hear its pretty good, but noticed its weak at high levels and epic, which is to be expected of summons. Is it still viable at high levels?
Tempered: What exactly is this? I don't understand if it gives toughness as in the feat, or if its something else. Looks like weaksauce as well.
Earth + Water: Cloudkill seems promising if you fight within it for a period of time, but is it worth it?

Those were the only three I wanted to know more about.

[Sarisa]

Everyone should have a Raise Dead item, if they can't UMD a scroll or cast the spell. If you make it on a blunt weapon, it's a great undead beater. If you make it triple positive instead of just double positive, it's the best undead weapon available (especially blunt).

I like Haste on anyone who can't cast it themselves; the Earth Elemental when levelling (but not as useful at cap); and Stoneskin if it's on a "MinII accessory".

[knightgf]

Everyone should have a Raise Dead item, if they can't UMD a scroll or cast the spell. If you make it on a blunt weapon, it's a great undead beater. If you make it triple positive instead of just double positive, it's the best undead weapon available (especially blunt).

I like Haste on anyone who can't cast it themselves; the Earth Elemental when levelling (but not as useful at cap); and Stoneskin if it's on a "MinII accessory".

I love having a raise dead item, I think of it as a 'second chance' item. Back then, triple positive stunk more than undead doo-doo, but these days, it turns undead to nothing but mush, which is real nice. Haste and displacement are two things I've been thinking about crafting since they both have good uses on my toon, and I already wield a MinII greatsword, and while the stoneskin wont be as nice when I cap, its still a tad bit better than the DR I will receive endgame. I was also going to consider waves of exhaustion but since they nerfed it, probably isn't anything useful enough for me.