They also have dedicated land support with Haven of the Spirit Dragon, Crucible of the Spirit Dragon, and Temple of the Dragon Queen, making it easy to support a 5-color dragon deck
Later in Episode 6 Together, Annie and Kellan attempt their escape from the vault as it crumbles around them, but their exit strategy gets complicated by Akul
One thing Id like to mention up front: Ezuri will make a great commander for a deck that focuses hard on +1/+1 counters or poison counters, and I wont dig deep into that aspect, since its pretty easy to search for cards that support either one of those strategies
This is easily done within the confines of the precon, both with the commander that investigates every turn to make a Clue and with various draw spells to trigger all of your permanents
Set: OP-15 Adventure On Kamis Island
The main selling point is the ability to make 2 Mana out of a single treasure token, which is super strong