I have a player whose character is an assassin. Upon the beginning of a battle he will become invisible and "study the monster" for 3 rounds. On the 4th round he will attack, usually killing the monster. Last time we played, he did his usual thing but when he went to attack, he tripped, and stumbled and did not attack.
My question is: is he still invisible since there was no attack roll or does the intent of attacking remove the invisibility?
My question is: is he still invisible since there was no attack roll or does the intent of attacking remove the invisibility?