Where do we start?
That’s simple. You start with Cor (9-066C) because that is the card we chose to represent Cor in this Character of the week. We believe it is the better version, and that is that.
Now that Cor is set, we need to add the late king, Regis (15-103C), which not only gives Cor his permanent buff, simply because it’s Regis, but Regis also lowers the cost of casting the Kingslaive by 1CP.
Battling alongside King Regis, and Cor is Cid Sophiar (18-077R) and Clarus (11-068R). Cid Sophiar can grab a Character from the Break Zone, and Clarus let’s you search for a King. Which doesn’t have to be Regis.
What’s a Captain to do without the Kingsglaive? Well, we’ll need to grab them all and add them here. Pelna (15-098C) you 
can cast him for 1CP because you’ll most likely have more than one FFXV Character on the field already. And he’ll buff all of your XV Forwards by 2000 power.
Tredd (15-093R), for 1CP you can give a XV Forward +1K and Brave for the rest of the turn. If you put him in the Break Zone, it’s +3K and First Strike.
Libertus (11-102C), to let you grab a XV Character from the Break Zone, and possibly activate 2 Backups if you choose …
Nyx (11-097H), cause he’s about to strike down your opponent with Haste when you put a Kingslaive into the Break Zone, which could be …
Crowe (11-092C), who will help you grab a Forward from your Break Zone.
I’m lost.
With So, many Lightning Forwards we need to add Glauca (11-091R) to save us a Crystal Point every time we play a Lightning
Forward.
Now that King Regis has passed away, Cor now watches over Noctis (12-121R) who comes in and grabs a FFXV Forward from the Break Zone. And every time he forms a party all the Forwards gain a 2K buff and Haste.
Cor will now need the help of the Retainers.
Ignis (20-066R), because everyone needs a meal, even when you’re on the road. Plus, you can put a Backup you control into the Break Zone, to break a Forward and grab a Forward from your Break Zone.
Gladiolus (18-135S), cause we need a powerhouse on the team, that can deal enough damage to Break even the most powerful Forwards.
And Prompto (8-082R), cause that’s the only Earth Prompto. 
We’ll add Class Tenth Moogle (9-074C) to help us pay for Lightning CP.
We’re going to grab our Free Summons Fenrir (19-064R) and Ramuh (19-083R)
Then we’ll also grab Mist Dragon (9-068H) and another Fenrir (12-068H).
And that should complete our Cor Deck.
Forwards
3x – Tredd (15-093R)
3x – Cor (9-066C)
3x – Glauca (11-091R)
3x – Noctis (12-121R)
3x – Nyx (11-097H)
3x – Regis (15-103R)
3x – Libertus (11-102C)
3x – Ignis (20-066R)
Backups
3x – Class Tenth Moogle (9-047C)
3x – Pelna (15-098C)
3x – Cid Sophiar (18-077R)
3x – Crowe (11-092C)
3x – Clarus (11-068R)
3x – Prompto (8-082R)
Summons
2x – Mist Dragon (9-068H)
2x – Fenrir (19-064R)
2x – Ramuh (19-083R)
2x – Fenrir (12-068H)
What would you do different?
