Deck-building: Heralds/Legionnaires

What we have.

Characters
Triad, Luorno Durgo
Saturn Girl, Imra Ardeen
Plasma, Replacement Herald
Galactus, Devourer of Worlds
Human Torch, The Invisible Man

Plot Twists
Past, Present, and Future, Team-up
We Are Legion
Foiled Assassination
The Herald Ordeal, Team-Up

Locations
Birthing Chamber
Elemental Converters
Worldeater Apparatus
Soul World

So, what else is there? Well, there's Cosmic. The last bit. It's an important bit, though. As you may have guessed. There's too many to list them all, but I will hit on some that I thought about.

Team-stamped
Cosmic Boy, Rokk Krin
Celebrity Status
Many Worlds
New Recruits
Terror Incognita
Pacification
The Power Cosmic Unleashed
Legion Headquarters
Mon-El <> Valor, Lar Gand

Generic
Cosmic Tuning Fork
Blinding Light
Franklin Richards, Creator of Counter-Earth

Blinding Light: Maybe. Slots are running low, however, and while you will be stunning people in team-attacks fairly often, this is only useful in one instance: to put a counter on Cosmic Boy.

Cosmic Tuning Fork: Yes. You need the filter. Simple as that.

Franklin Richards, Creator of Counter-Earth: Maybe. He's great, it's undeniable, but...it has downsides. It doesn't share an affiliation, and you frankly don't need your people hidden that desperately. There's only one character you really want hidden, and even he's not entirely necessary.

Legion Headquarters: No. Moving a counter around isn't worth it, since they won't be sticking around.

The Power Cosmic Unleashed: Probably not. Again, it's only really worth it for the Cosmic Boy counter (or, in very rare circumstances, Human Torch). Still, those are two very important characters.

Pacification: No. You're dropping too many characters. It's not worth it.

Terror Incognita: Probably not. Then again...Silver Surfer (2) can search it out, even as a 1-of, and it 100% guarantees that Galactus will win it for you on 9. So...maybe.

Mon-El <> Valor, Lar Gand: Yes. As a 1-of, he's easily searched, and he's normally absolutely enormous on 8. A great wall and an even better smasher.

New Recruits: Yes. Great, simple search for you.

Many Worlds: Nope. Versatility is nice, but it isn't enough.

Celebrity Status: Maybe. It's not bad, but it depends entirely on your opponent, and as such, it's a little hurt. I'm going to say no. Against some decks, it will never matter, even a little.

Cosmic Boy, Rokk Krin: Yes. Definitely. One counter on him buys you a fair bit of endurance.

Characters
Triad, Luorno Durgo
Saturn Girl, Imra Ardeen
Plasma, Replacement Herald
Galactus, Devourer of Worlds
Human Torch, The Invisible Man
Cosmic Boy, Rokk Krin
Mon-El <> Valor, Lar Gand

Plot Twists
Past, Present, and Future, Team-up
We Are Legion
Foiled Assassination
The Herald Ordeal, Team-Up
New Recruits

Locations
Birthing Chamber
Elemental Converters
Worldeater Apparatus
Soul World
Cosmic Tuning Fork



Possible?
Franklin Richards
Blinding Light

That takes us to the end. We just need to round out the characters, and that would pretty much end it. You're so close. So close! But not yet.