Invader 8
It won a little tournament in our LGS. (13 or 14 participents)
1st game vs elite Vader and TuskenRaider
2nd game vs elite Phasma + Trooper + NightSister tough game - he was able to use twice endless ranks
3rd game vs elite Rey + elite Han
4th game vs elite kylo + elite jango A very fast game - jango had only 2 activations before he was defeated.
It seems to be a very slow deck (4 Characters, Backupmuscle and HUnker Down), but Squad Tactics and Tactical Mastery can do very much damage in one turn. Don't underestimate the non-unique characters - they have 3 damage sides on their die and toghether 29 hitpoints.