I might say By Your Command should be limited to ships with 2 attack or less. Adding 2 dice to another ships attack is good, but still has some limits (for instance if you're at range 1, you're sacrificing your range 1 bonus if you use it), but adding 3+ dice to someone elses attack starts to get scarier. If you have 2 phantoms you could get an 8 dice attack at range 2-3, or 9 at range 1. Without any other requirements as long as you're within range 1 of each other. That'll one-shot any low health ship a lot of the time if you have focus/TL for the attack.
At the very least it should have some downsides and/or limitations. Can only add your dice to another ship that you could attack yourself, stress for both ships when you use it, something. Should probably also limit it to only being able to have a single ship boost an attack at a time. Otherwise Imagine a black squadron pilot swarm with this on everyone. All of a sudden a tie fighter could have its attack boosted by 5 howlrunner and the other 4 blacks and have a 12 dice attack. Or you could throw 2 6 dice attacks.
Or say Echo who never actually decloaks, and instead spends her game staying in range one of Whisper, to giver her a 8/9 dice attack.....
"Instead of performing an attack" to me means you have to be ABLE to attack to do it. If echo's cloaked, she doesn't get an attack (which astually would be dangerous to do the 2 phantoms together I guess, since if you don't attack, no ACD). Ditto blinded pilot or asteroids.
Yea, I find the Phantom example to be fair with the idea of an 8 dice attack being scary but if you have Whisper on the board purely for the dice adding mod, I don't see your list going very far.
Also, it's worded so you would have to buff up the attack of a lower or same PS ship or else you just boosted an attack for nothing.
Possible danger zone is swarms, but I want to shake things up with the card to an interesting point and not make it OP.... I think limiting to a 2 dice attack is fair to avoid it on a Defender and possibly adding "Gain 1 stress token".


















