Honestly, i think Andrea with a crit build would be insane, especially with the northerner's team power cause she is the only unit to deal explosive damage in an attack aside from juggernaut which is questionable at best since he is melee and requires a crit. Yes some units like firefighter and now Lionheart have explosive resistance along with a few others, but honestly i would love to see the damage numbers on a max crit set. Would be insane, especially right now during the christmas event.