New spoilers from Team Covenant!
Darth Vader: Dark Apprentice
(blue villain, rare)
1 ranged, 2 melee, 3 melee for a resource, 1 discard, special, blank
Special: Deal 3 damage to a character. Then deal 1 damage to this character.
Thoughts: Blue version of a death trooper, basically. Heaps of damage but can't afford his own upgrades. With some support I could see him pulling Grievous levels of pain. In fact, you could even pair him with 1 die Grievous...
Obi-Wan Kenobi: Mysterious Hermit
(blue hero, legendary)
1 melee, 3 melee, 1 focus, 2 focus, 1 resource, blank
Before this character is defeated, you may play a Blue card from your hand or discard pile for free.
Thoughts: HOLY CRAP THIS IS STRONG, and holy crap we all guessed wrong as to why. Obi-Wan isn't here to pair with Luke, he's here to pair with, like, a Padawan or maybe Rey. You get 1-2 super powerful dice, a bunch of health to guardian things away with, and you can play any blue card you have access to for free as soon as he dies. The card as written allows you to drop something like One With the Force on Obi, then have him immediately die and make it a support. You could also pull powerful blue events out of nowhere if you have no upgrades to toss around. Mono blue hero just got a really scary character.
(blue villain event, uncommon)
Heal 5 damage from a unique Blue character. You may play an upgrade from your discard pile on it for free.
Thoughts: Blue villain continues to refuse to pay for upgrades, only this time they need to actually afford an investment to begin with. This is essentially a pricier Second Chance that you have to be proactive on, but it potentially showers you with value if you rerolled early game with a Kylo's Saber, Mind Probe, Force Lightning, etc.
Claim - Choose a character die. That die cannot be rolled during the next round.
Thoughts: It's Prized Possession but affordable! This is an insanely powerful effect. Do they have a one die character getting on your nerves? Freeze them in carbonite. Want to slow Jango down? Freeze him. Only problem is by removing dice you're potentially speeding the opponent up next round, which means you may alternate claims a lot. Still a really intense effect.