Suggested by Sonic Berthier may have humiliated Sailor Mercury when they last fought, but the scout has grown a little tougher over the years. Both of them use similar attacks and have similar physical attributes. Neither one of them is particularly tough so it really comes down to who has the better attacks. I believe that Mercury’s are at least a little more powerful with all of the upgrades that she has gotten, but this is an opponent who can give her a good challenge. Sailor Mercury wins.