With how easy it is for many characters to stack their crit chance north 50% (some can come close to or eclipse 100%) I dont know that Daunting presence is really ever going to be an effective leader ability. I would rather see them rework it in some way to go along the lines of granting allies crit immunity (ala GK). Along with that I think it should also have some form of TM manipulation, whether offensive or defensive, to make his leader ability more competitive with the undisputed best droid leader, HK. Something along the lines off...
Daunting Presence: Whenever a droid or seperatist ally gains a buff, grant them crit immunity for 1 turn. Whenever a droid or seperatist ally gains a debuff, grant them 25% turn meter. All droid and seperatist allies gain each of these at the beginning of each encounter.
Tactical retreat: In addition that ally gains Defense Up for 1 turn and will always be Magna Guard if available.