Concept idea: Supreme Chancellor Palpatine [GL]

? Why Palpatine, We already have one:
Short answer: somehow, Palpatine can always return. Long: The one we have is some clone of a clone with the spirit of Sidious and a bit more other Sith(read: Ermac of SWU), Palpatine in his Prime was during GR Era. And this is the best GL-figure for Clone troopers

• Ultimate: Execute Order 66
  >> His Ultimate permanently increases mastery of all non-Jedi GR allies or 501st, removes all negative effects, resets Cooldown of all non-UFU allies and grants Advantage for 2 turns. In addition non-leader clone trooper allies are revived.
  >> Clone Trooper allies gain Bonus Turn and new buff Grand Army of the Republic for 2 turns, which increases damage dealt 2 times, attacks can't be evaded or resisted, debuffs can't be applied, attacks can't be countered, enemies can't revive if killed. And whenever any clone troper ally or Representative deals dmg - all allies with this buff are called to assist.
  >> the first time Clone Trooper ally should be killed - they gain Damage Immunity for 1 turn.
  
• Basic: Do it
  Calls ally to assist. If that ally is not a clone tropper, he gains Overconfident for 1 turn. This attack can't be evaded and If it kills enemy - that ally gains a Bonus Turn.
  Can't call himself if there is at least 1 other ally. If there is no other ally - SCP deals true damage and gains same bonuses,
  
• Appoint personal Representative (I appoint you to be my personal Representative)
  >> Reapply Extortion on all enemies (SCP gains Profit for each reapplied Extortion this way)
  >> Target ally gains Representative for the rest of the battle or until another ally gains Representative; then, that ally gains Bonus Turn and resets CD.
  >> Representative: ignores Taunt, inflicts Marked when uses special abilities, attacks can't be evaded
  If there is no other ally this ability is replaced with:
  
• It's treason (then)
  >> Reapply Extortion on all enemies (SCP gains Profit for each reapplied Extortion this way)
  >> Inflicts Fear on all enemies with Extortion
  >> then takes Bonus Turn and during this turn SCP ignores Taunt and deals increased dmg for each Fear on each enemy
  
• Are you threatening me?
  >> Removes Turn Meter from all enemies and inflicts Demoralized for few turns, If any TM was removed - Stun that enemy. SCP gains Overconfident for 1 turn; Then reapply Extortion on all enemies and inflicts extortion to target enemy if he didn't have it (GR allies gain profit for each reapplied Extorion).
  
• Leadership: I am the Senate
  >> Grants stat bonuses to all non-Jedi GR and Clone Trooper or 501st alles (GAS gains those bonuses as well).
  >> Clone trooper allies and 501st allies gain protection up and speed up at the start of the battle.
  >> Grants profit to all allies whenever they kill an enemy or Extortion is removed.
  Profit: +10% Critical Chance and Critical Damage per stack (max <250%) until the end of battle
  >> Whenever ally uses special ability on enemy with Extortion - another Clone Trooper ally assits.
  >> Abilities that target multiple enemies deal additional true dmg to target enemy.
  >> SCP and Representative are immune to TM manipulation
  
• Unique: Insidious motives
  >> Whenever SCP uses special ability he inflicts Extortion on the weakest enemy that does not have it
  >> SCP can't be targeted if there is at least 1 other ally and gains Stealth for 1 turn whenever he is Hit
  >> If there is no other ally - SCP changes his game model and inflicts shock whenever he uses special ability.
  >> SCP deals more damage against enemies with Extortion
  >> At the start of each encounter, if there are no other allies, SCP inflicts Extortion on all enemies
  >> For each defeated character SCP increases his Mastery, Offense and base Speed