I have Magnaguard at 6* (31/100) and max level/gear. Planning on trying him with HK lead, 88, 86, and Geo. Geo has fast speed and calls assist. He will call a droid, if that droid crits they get turn meter and get to go after Geo. If he calls IG-100, 100 goes next and can AOE and possibly reduce turn meter and allow the rest of the team to go. If IG-100, HK, or 88 get multiple crits on their aoes, they fill more turn meter and can go twice in a row. This can lead to some interesting first round actions. Probably won't do well on defense though.