Messing around with my single minion atm.
Using a RBF I've noticed some things about AMF backlash (and therefore the RBFs DD reduction and Decay.
With a base Decay, facing a 1.00 AMF (no NSC) without the RBF I took first round 800,000 backlash. This works out to be 20% of my total HP. Spot on to the expected amount (40% of my Health/2 * AMF%).
Using my RBF (level 1,129,414) I took 656,000. So the RBF backlash protection works versus Decay backlash (not sure if the ToE did...) and my Tatoo provides an 18% reduction in DD and Backlash damage.
