Stormguard Warrior is a second line of abuse not your primary.
Unless you have boosted your attack chance way up there it's self to assume you're last attack will miss. At any point you full attack, such as pounce, time stands still, recovery, you can augment next turn's damage by 5 per attack. And on that turn it's generally the best time to expend Raging Mongoose or some such. Admitably, this is probably the turn off you keep reading. However, expending a turn to charge this virtually guarantees death next round and is very very powerful when used in conjunction with something like Vampiric Touch.
Channel The Storm is mop up. Combined with Roiler's Gambit oppoents provoke an AoO each time they attack you. A very nice little detail to pay attention to is the 1 AoO per round limit applies to attacking and does not the limit of AoOs people can provoke from you nor the number you can choose to forgo. Depending on the monster this can range from four or more attacks, or a staggering +16 bonus to both attack and damage next turn and all it cost you was two feat slots. OPs suggest Knowledge Devotion which requires skill boosting and is lucky to give even a mere +5 bonus, this thing is flat out insane by all comparisons.
Mindful, it only augments your options. Don't ever build focused on using it.