Sanguine Retribution

Prerequisite(s): 7th level sanguine sorcerer
Benefit(s): Upon being struck by an attack/spell/etc. that deals at least [x] points of damage, you can (without needing to spend an action) activate the effect of Sanguine Retribution, in which case the originator of that attack/spell/etc. must roll a d3.
If the result of their roll is a 1, they become dazed for 3 rounds.
If the result of their roll is a 2, they become dazed for 2 rounds.
If the result of their roll is a 3, they become dazed for 1 round.
[x] is equal to your current hitpoint total plus one
Note: The effect of Sanguine Retribution has a recharge time of 1 hour.