Artoomis said:
The example was the rogue invisble with a full attack routine, right?
I say:
Ogre readies action - he wants to attack the rogue when he appears. The DM must interpret that wihtin the rules and figure out what to do.
1. He can't, technically, attack as soon as the rogue appears. The rogue appears while he is attacking.
2. He could, though, attack just before the rogue attacks, maybe. It's a bit tricky, from a rules perspective, but you might allow him to attack even as the rogue is beginning his swing an turning visible.
The effect is pretty much the same, but it's the logic that is important. if you cannot make it fit within a readied action somehow, then it can't be one.
I think you are hung on that "before" word again. Obviously the oger can't attack the invisible person before the attack, oger doesn't know rogue is there. As soon as he can, the oger attackes, which would be after he took his damage. If readied actions happen at the same time as the trigger, this works. If you say they happen at the same time, then this works. Else the oger can kill low hp rogue without taking any damage.
PS. Why does this remind me of playing Magic: The Gathering?