eamon
Explorer
That doesn't work - no feat allows replacing your off-hand attack as you specify. I think you mean to say the following:Here's the sequence.
Twin strike lets you make 2 attacks. As per its description, you make 1 with your main-hand, and 1 from your off-hand.
So when you get to make an AoO, you make it with twin strike (courtesy of blade op). This means that both attacks made via twin-strike are also counted as AoOs, which in turn means that you can replace the off-hand attack from twin-strike with another twin strike (but bear in mind that it carries a -5 to-hit penalty, which will not stack).
- You are granted an opportunity attack. Heavy Blade Opportunity means you can use twin strike to take it.
- Twin strike allows a hit with your off-hand which is resolved normally, but also allows...
- A primary hand attack. If(!) this attack hits, you've triggered two-weapon flurry by making a successful attack with your primary weapon (it could be argued that using twin strike isn't a successful opportunity attack with your primary hand, but for the sake of argument, let's suppose that you allow two-weapon flurry)
- Two weapon flurry grants an opportunity attack with your off-hand weapon, which you propose replacing by using heavy blade opportunity with twin strike, so you'd go back to step two again.
Two weapon flurry grants an extra opportunity attack, but it's limited: it grants an attack with your off-hand weapon.
There are several other problems with this combo that an uncharitable DM might also disallow, such as the wording of heavy blade opportunity which might conflict with twin strike anyhow, and the fact that the two individual attacks which twin strike grants are not themselves opportunity attacks, so you could argue that by using twin strike you're no longer making an opportunity attack with your primary hand in the first place. I'd say that's being pointlessly literal, however, and would only resort to such hairsplitting should the rule otherwise not make sense.
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