Finally got around to trying this, and beat it on the first try; I don’t know how many people had had the chance to play against Oblivaeon (in his published form, post any playtesting) before taking on this one-shot, but my five experiences to date, the fourth of which I won, prepared me for dealing with this one. There were some annoyances, to be sure; Guise taking 6 damage from Nixious and another 12 from Dark Mind, dying after a single turn, was a definite WTF moment. And after reluctantly allowing the Refugees to die before this even needed to happen for Shield-flipping reasons, I made sure to get all the heroes in position with Blivs so The Ceaseless Ruin would hit them all for 2 and then go away, but then what does he do, he kicks us into the other battle zone. Fortunately, this wasn’t a trick he could repeat right away, and the next round he came down to our size and we had a proper fight.
Since one of the first Missions to come out was Form the Mecha-Knight, I picked the Idealist to replace poor splatted Guise, and although it wasn’t her who had the Knight, she could put a card under it. Had I noticed that the MK doesn’t destroy its cards like a normal Concept, I would have tried a lot harder to feed it, though the need to handle my initial hand’s Monster of Id meant I mostly had to feed my Fragments to that. Still, I had all but one of the Concepts from my deck in play by the end, and was getting ready to do Bored Now on the well-stocked Monster, when suddenly a FILTER Agent popped out of the Block and shot her, causing her to die to Sanction’s and/or Oblivaeon’s attacks. This left the Knight back down to the same limited functionality it would have in my IRL games, if I had ever managed to get OA played at a table, since I don’t own a physical copy of the Void Guard.
Still, the team continued to soldier on, with an extremely well set up Scholar being central to much of our success, especially once he managed to Orchestrate the Void and get the Virtuosos down. I can’t overstate how strong they are, and pairing heal-everyone-by-2 from them with heal-everyone-by-2 from Faultless soon made it even better. With KNYFE having made a suicide run on some Aeon Men with a boosted Magic of the Ennead, and not noticed that Hellion was going to do her in, and Sky-Scraper having also died at some point, Scholar was the only hero left from the beginning, but he seemed invincible, having stayed at full HP for several turns, and even gone triple Flesh to Iron at exactly the right moment to totally soak one of Blivs’s attacks at +4 before the Shield went down.
Super Science Tachyon was the replacement for Sky, and one of the first things she did was build Chekhov’s Hairdryer (this was before Knyfe died, so she supplied most of the Equipment consumed for this). And it was a good thing too, because You-Know-Who showed up with his Devastation Armor, and the Hairdryer was the only thing that could touch him. I started to become very concerned that my victory was going to be stolen, so I started actively trying to avoid killing OA until after this particular Scion was disposed of.
All game, only two Environments were destroyed; one was blown up with all the heroes in it, but an Offensive Transmutation ensured none of us took any damage. The second one was about to happen, and I was planning to deal with it by having everyone get out of Dodge, but first I tried to set things up by having Scholar in Alchemical Redirection with a single Flesh to Iron, to deal with any attacks by secondary targets. He was at full HP, and I planned on having the Virtuosos play another Transmutation on Blivs so that another Environment would vanish harmlessly around us. Instead, however, I triggered Oblivaeon’s flip, allowing him to play a card at the end of Scholar’s turn, before the Virtuosos would work. And the card he played was another Disrupt Spacetime, the same card which delayed my Shield removal before. With only Scholar able to take damage, I figured he would get moved, but could move back in time to activate an Oblivion Shard, which would let me do just 1 or two extra damage to That Scion, enabling the Hairdryer to take him out. Alas, I’d also been trying to solve the same problem another way, by clobbering Borr the Untimely (so named because Expatriette, the replacement for Idealist, had put a Hair-Trigger Reflexes bullet into him before he could even announce himself as a new Scion, and his luck just went downhill from there. Since Borr gains only one token per turn, a huge flurry of attacks on Faultless’s turn had nearly killed him, but he had a mere four tokens; alas, that meant that when Oblivaeon killed Borr at an inconvenient moment, Scholar ate 4 net damage for every hero target in play, taking him out from full HP.
So that sucked, but we were so close to being done that it didn’t matter. Thanks to Blivs moving himself to the Enclave of the Endlings, where Empyreon had been left to tussle with the locals while the heroes tried to end the game, the second Environment removal had no heroes to hit, and left Empyreon at 1 HP. With That Scion briefly reduced to a more manageable 3 or 4 armor, T-Rex Bot and the Infinity Cannon were able to bring him within range of a single Hairdryer zap. Then it was all just mopping up; I continued to delay killing OA until the last couple Scions were dealt with (the frequently nigh-invincible Empyreon flipside went down pretty easily thanks to Omni-Unity granting sentience and electrokinesis to all of Expatriette’s guns, an unspent Ammo or two, and even her Flak Jacket). My confidence was in no way punished; nothing Blivs could pull out of his pockets was able to save him from The Sentinels leading The Every Man with like a 20-card hand. The Block remained unscratched from the game’s beginning, and the last hero to show up, Fanatic, took basically no damage except from a bored Citizen Storm, who accompanied Tachy on her final Scion hunt and was left not having any enemies to attack, so he shot one of his temporary allies out of boredom instead. (I think we can all agree this is perfectly in-character.)