Should you, though? Palpatine doesn't really belong on a dogfighting battlefield any more than Mon Mothma or Yoda does.

Unless of course he's being transported aboard an imperial shuttle, and the rebels just happen to come across it, though since it's palp he probably planned it as a trap

Obi Wan Kenobi

After an enemy ship declares you as the target of his attack, change his target to another friendly ship he can target instead.

This isn't the ship you're looking for.

how about this....

if a ship with obi wan is targeted for attack, the controlling player rolls attack dice and the attacking player roll 3 attack dice. if obi wan scores more hits and crits than the attacker he can force him to fire on any ship at range 1 from obi wan in the attackers fire arc

I'm personally not a fan of an ability that adds another random chance in order to function, also because it's always a recipe for clunky rules text. .

Let's see if we can clear it up a little though.

Once per round, when an enemy ship declares you as the target of his attack, you may have both of you roll three attack dice. If you roll more [hit] and [crit] you may change his target to another friendly ship it can attack instead.

Limited to once per round to prevent overpowering and added rear arc and turrets being affected.

Now you put him on a huge ship with an EM emitter and try to keep yourself between the enemy and a decoy high evade ship.

I like your spin, but i would like to change the "change his target to another friendly ship" to "change his target to any ship"

allowing you to make him attack his own ships