1) The clicky and spell are on the same timer. If I use the clicky, it doesn't grey-out the recast timer on the spell, but if you cast the spell you get the recast time not met message and no spell goes off.
2) You still need an emerald reagent component to use the clicky.
I'm not sure what the benefit of the clicky is, beyong freeing up a spell gem.
Thanks!
