Full Round Vital Strike

[Phasics]

Full Round Vital Strike:
spend a full round action making a single attack at your higher BAB
Multiply all damage variables not just base weapon die.

Is this as horribly overpowered as I think it sounds ? Or is it ok and maybe just needs several feat requirements to make it cost something to get ?

[Sean FitzSimon]

Overpowered? Not really, so long as you only make it available after a certain point. If, for instance, you could take a feat called supreme vital strike at bab 16 that doubled your total damage on a single strike for a full round attack I don't see that as broken at all. You're giving up three additional attacks for one potent swing. It would be a great option for enemies with high DR or difficult to meet ACs, but wouldn't be worth it most times.

[Mirror, Mirror]

I would put a Standard, Improved, and Greater version with the corresponding Vital Strike feat as a pre-req.

Thus, for the Supreme Vital Striker, you absolutly NEED 6 feats to accomplish your goal. 6 feats is a pretty big feat tax (more than even TWFing), so I think that balances things out.

Personally, I have been leaning towards allowing VS to add 50% of non-dice damage, rounded down. Then IVS would add 100%, and GVS would add 150%. The result is a quad roll with 2.5x the bonus damage, which is still not as good as a full attack, especially with haste, but good enough to be more useful to Fighters and other full BAB classes.