Ok I think I know the answer to this but I wanted your opinion.
Ten nub is firing a HLC at a target in the AoE of E'than's ability.
He rolls a critical and 3 blanks.
The critical gets turned to a hit as part of the attack. Can he use E'than ability to change back to a crit? I think he can as the HLC doesn't normally count as a "modification".
Alternately, if he rolls 4 blanks in the same scenario and then he rerolls using a target lock and gets 1 hit can he upgrade that to a crit? I think this counts as two modifications so he probably can't.