Goumindong
First Post
How about just giving wizards, or a wizard path, a daily power that says basically the same thing?
Better yet, since wizards still "prepare" spells from a pool, add a feat like you presented, but have it be "prepared" in place of a daily spell? If you want to "prepare" the ritual for tomorrow, you need to recast it (at the normal cost). That's basically the same as you were presenting, except the "in place of" bit seems a bit more in keeping with the 4e spirit.
This entire idea is retarded. Rituals are rituals and not powers for a reason.
That reason is
Rituals, when cast in a single action or round, break the game. All of these spells were removed from the wizard repertoire because when only one class has access to them it breaks the game.
You are asking for a mechanic to break the game. Of course it would be really stupidly useful to be able to cast rituals at a moments notice. That is why you cant do it!
As for the utility of it...uhm...you get to use it once, and it costs you 7,000 gold. I'd call a delayed casting of it more of an "In case of emergency" than a "Rogue, stay home, we don't need you".
Right up until the time that 7,000 GP isn't all that much money, which is going to be right around level 20. Now it is "rogue, stay home, we don't need you". Whoops.
but most of the time, you'll want to use it on an unwilling subject, and while you can engineer things to make it possible, it often reaches the point where it's easier to just kill them. ("OK, so we kidnap the prime minister, tie him up for ten minutes while we perform the ritual, and then make him forget he saw us stealing the silverware? And, oh, also, that we kidnapped him?")
You do realize that you indeed just gave mention of a perfect time to use said ritual, right? Because when you do, the prime minister says "welp, i lost the silverware, i wonder what could have happened to them, its so strange that they would disappear." rather than an investigation crew saying "we have a band of murderers on the loose killing government officials, lets find these buggers, round up the militia and run them through."