Rhetorical Flourish (Mythic)
You’re supremely skilled at using verbal misdirection and
Prerequisite: Rhetorical Flourish.
Benefit: When you successfully use Rhetorical Flourish against a non-mythic creature, the bonus on your Diplomacy check increases by your tier. If the target is a mythic creature, you instead increase the bonus by half your tier.
You can expend one use of mythic power to reroll a single failed Bluff check. You must take the new result even if it is lower.
Source: Mythic Adventures, p. 72