Emirikol said:
Invisibility -> Attack -> Hide
So a rogue with a ring of invisibility could go invisibile in round 1, then in round 2 make a sneak-attack and re-activate his ring OR attempt a HIDE in the same round right?
jh
HIDE RULES- SRD
http://www.d20srd.org/srd/skills/hide.htm
Round 2: Rogue becomes visible, attacks opponent. Assuming clear conditions, everyone on the battlefield now notices the rogue (he's not currently hiding, so they don't need a Spot check to see him, and he's engaged in battle, so they can hear him with a Listen check at a DC of -10).
At this point, and for the rest of the combat unless the opposition are particularly dense, he's being observed, probably more than casually. That means that even if he gains concealment or cover (the minimum requirement for any possibility of making a Hide check, barring certain class features), he still can't hide, as he's being observed.
That leaves him two options: Make a Bluff check (against heavy Sense Motive bonuses, given that stopping observing you will put your opponents in danger) using the Create a Diversion option, distracting your opponents so that you can attempt to hide (again, only if you have cover or concealment).
Or activate the
Ring of Invisibility to become invisible.
However, either of these actions (Create a Diversion or Activate a Magic Item) requires a standard action to accomplish, and you don't have a standard action available, having just expended it to stab an opponent. Therefore, you'll need to wait for your next turn before attempting your disappearing act.