FLAME is giving up his memories before Kyriakos—of his mother, his girlfriend, his friends & the rest of his family; everything that he knew before Kyriakos; in essence all the pieces of his soul that he's regained that aren't skills.
ranked a 10 bc not only is this actual parts of his soul but also with this he's pretty much giving up a chance to save his world sooner than later.
flame is also slated to die if this sacrifice doesn't go through.
Charles is giving up his feelings and relationship with Erik/Blade because that's the most important thing to him as it centers him as a person and an individual.
DECISION
ranked a 10 bc not only is this actual parts of his soul but also with this he's pretty much giving up a chance to save his world sooner than later.
flame is also slated to die if this sacrifice doesn't go through.
Re: DECISION
ranked 10