You know, I'm going to change my mind on this one. I
would take the feat as written if I were minmaxxing (and go Stormwarden, foregoing fighter powers. Actually, if I were minmaxxing, I'd use the background that allows two MC feats, but that's neither here nor there).
Having crunched the numbers (assuming a 1d10 weapon, a +4 primary mod, hit on a 11 and a crit on a 20), HotF as written is a 60% dpr increase from baseline, as compared to the Barb MC's 20% increase from baseline. Even counting for the inability to use it on multiple targets, the high wisdom requirement and the requirement to be the only one adjacent to the enemy, I feel that's too high, especially when considering that it will invariably be used to land dailies and AP attacks.
That is a big difference as is the +2 to damage, vs the (essentially) +5 to hit.
Just to clarify the math, here- rolling two dice per attack is equivalent to +3.95 to hit, not +5. A crit always hits, though, so the combined probabilities in a "hit on 11, crit on 20" attack shift from
50% miss, 45% hit, 5% crit
to
20.5% miss, 69.75% hit, 9.75% crit
As I mentioned above, this translates into a 60% dpr increase on a melee basic, as compared to the Barb MC (or weapon focus) bump of 20% dpr.
Edit: Whoops! Realized I punched in the wrong number on the windows calculator. Doing probability at work ftl.
