Something non-obvious about the new Unity - if you don't have any golems in your trash and don't have any golems in play, you can still activate her power to draw a card. As people pointed out, the draw is not conditional on the destroy succeeding, but it's also not conditional on the "move into play" succeeding. It's super helpful when you get a really bad starting hand with either no golems or no way to play golems, but you do have other cards that can be played (volatile parts, brainstorm, etc).
The spouse and I played two games so far with the promos. The first one was promo Guise, Unity, and AZ with normal Visionary vs Advanced Deadline in Pike Industrial, and we just crushed him. We weren't trying to make a challenge, we just wanted to play around with promo AZ. And, we got lucky - turn one Twist the Aether on Deadline won the game right off the bat. AZ kept his power up with both modules out, and Twist was used to reduce Deadline's AoE damage to others by 1 and increase it to AZ by 1 and turn it into Fire (or cold if he was hurt). 3 infernal damage became 4 fire which became 6 fire which became 9 cold damage. Once unity gave him an out of turn power use so he could stack his base power, making him dealing 1 cold damage to himself heal him for 10 (no cryo chamber). The game ended with a max HP AZ using Coolant Blast for 30 damage.
Unity's promo power was pretty useless in that game, sadly. She just never had golems in her trash. With Twist on Deadline reducing his damage by 1 combined with an early Stealth Bot and an army of Platform Bots, her bots just weren't taking damage, and if they did, she drew some timely inspired repairs. Sure, beebot could have really helped kill those ongoings, but with three other heroes that could do it, it just wasn't worth giving up a bot when she could play more instead with pylons. Also, Deadline kept severing ley lines, causing me to shuffle her discard back into her deck, so she rarely had golems in her trash anyway. We were thinking that Visionary could help her discard golems to play later with her base power, but it just wasn't ever useful in that game.
Santa Guise is the best hero. He gave everyone three presents and waited while they opened them. He's so awesome and totally won the game. Most of Unity's presents contained raptors. Would order again.
(Also, when Deadline rent the environment the first time, he killed all the rats, pied piper style. The second time, he killed all the vat explosions, which makes LITERALLY NO SENSE. xD "I shall bring disaster and ruin to this world in order to save it! But first, some workplace safety. The rats have to go, they're a health hazard, and then let's see if we can do something to make those vats safer to handle. And THEN, when this workplace is fully OSHA-compliant, I shall rent the very world ashunder!")
Our second game was even more ridiculous. We wanted to see just how many presents Santa Guise could fit under the tree. Santa Guise, Grandpa Legacy and PW Argent Adept to help hand out presents, and Termination Bunker (really just because I wanted to try him) vs The Advanced Chairman in Silver Gulch. Much shenanaghins abounded, like Santa Guise using "I can do that too!" to copy Grandpa Legacy's power to make Santa Guise give out presents, and then during Santa Guise's power phase, using his other base power to have someone open their presents. We decided what was happening there was Grandpa Legacy put on a santa suit to hand out presents, but when he arrived, he found Guise there in a santa suit wearing a Legacy costume over it, and then a second santa suit over that. The best though was when Argent got going, and we had Santa Guise use "I Can Do That Too" to use Grandpa Legacy's base power to make Argent Adept use a power, who then let Santa Guise play a card and gave everyone 2 HP and himself an extra 2, for a total of 5 healing to Argent and 2 to everyone else. "I Can Do That Too" turning into 11 points of healing without even spending the card play is kinda absurd.
Argent Adept was NOT HAPPY though to go looking for his instruments and realize they were nowhere to be found. It seems Guise snuck in, stole his unique, mystical artifacts, wrapped them up, and gave them to Argent for Christmas.
Promo Bunker's power just wasn't interesting though. He never had a card out that I wanted to destroy that I could destroy. Ammo Drop never stopped being useful with Omnicannon out early and tons of villain targets dying all the time. I could never not afford to maintain gatling gun. The modes can't be destroyed generally since two prevent powers from being used and there was never really a reason to go into them. The only real use I could see to his power was to do silly things that netted drawing a card, which his normal base power can do in a much more straightforward manner. I'm really not seeing the benefit of his promo power yet.
Also, opening 7 presents at once is the best thing ever when you're Argent Adept and two of them are Arcane Cadence. Though, it's probably the worst thing ever when you're in the game where someone does that and you're not that person.