If a Hero rolls a 5, on a "To Wound" roll, against a model on which he requires a 6/4+ to wound and chooses to expend a Might Point to raise his result to a 6, does the Might Point also raise the result of the second dice he will need to roll afterwards?

Thank you for your time!

yes.

in that example, the second roll will only need 3+, since a might point is already been spent.

may i ask on what page this is on in the rule book?

pag 56 of the italian rulebook (the small one in Escape from goblintown set), second page of the "heroes" section.

Thank you for your reply, Dikey