AJ Christiaens
Prometheus is a deck that utilizes the eradication zone to the fullest. He can be built to varying degrees from aggro to midrange. though they all use the same key cards to reach his goal. The deck has a lot of draw power, and in your starting hand you really want to see as many copies of Titan Tumble and Primordial's Steal Godly Treasures as possible. These 2 cards allow you to dig into the decks many options. The real star of the show however, is Primordial Prophet Of Light, Phoebe! She is amazing to see at any stage of the game. The new Primordial Reckoning being a good card to open to stop your opponent's key Fortified cards also revives Phoebe with it's eradication effect.
Early Tips & Playlines
you often want to have your Warriors in your eradication zone so you can get them when ever you need, Strength Of Atlas is the all-star for this as it eradicates Warriors for cost.
In the first couple of turns you want to get to a point of having about half to 2/3 of your deck in Eradication. One of my favorite opening plays is using Primordial's Steal Godly Treasures to draw 2, but more importantly to eradicate an Opening The Primordial Pits from hand to use its effect for free to eradicate 10 cards. This can snow ball into more effects and card advantage, or open up your options by knowing where more cards are and what your next move should be.
As you might know we can end up paying a lot of life to gain our card advantage, so it's good to use Titan Temper and Treasures Of Arion to help keep your health at a manageable level.
Late Tips & Playlines
Be careful not to over extend as you will have cards that need to eradicate cards from your deck to use, such as Return Of The Primordials. This is a prime example of the fine line you can find yourself in between cards in eradication and deck as Prometheus.
Some key cards to help shuffle cards back into your deck are Treasures Of Arion and Ethereal Watchtowers. Watchtowers admittedly can be hard to use, but don't under value even shuffling 1-2 cards over the course of the game. Treasures Of Arion only shuffles back Arion cards, but this is often good enough.
Your main win condition is generally to find Creationist Power Of The Primordials and to use Prometheus' Special Ability to really hit hard. The best way to do this is (if Creationist Power is not in your hand) is to leave it in eradication until you know you can make use of it. Gifts Of Arion is your main way to do this, but Rise Of The Banished Primordials works too.
Sylas Belmont
Gaia is currently a very strong control deck, with many tools for delaying and grinding your opponents to a halt. She provides solid control pieces like Reformation, Topaz Amulet, and Land Of Dreams, while also having access to all the Titan “Good Stuff” Her main game plan is dragging games out, dealing incremental damage, and taking better trades then your opponent can, until you form an Unstoppable lead!
Mulligan Tips:
Mulligans in this deck are typically quite simple, you want a Reformation in your hand at least, and Unstoppable Titan War Smash is also a good card to see early.
The only thing you don’t want in your hand is Jasmine, Unstoppable Water’s Beauty, as she needs to remain in the deck for your War Smash.
Other than that, Topaz Amulet is a good control tool to see early, and Pandora’s Box is a great card to see if you are going second.
Early Tips & Playlines
In the early game, you are just trying to draw cards: Titans Tumble, Unstoppable Titan War Smash, and Forever Unstoppable are great cards to see.
Looping revives of Jasmine, Unstoppable Water's Beauty is also a great way to draw more cards and extend your combos.
Land Of Dreams and Topaz Amulet are also great control tools that can help snowball the game into an unwinnable state for your opponent.
Late Tips & Playlines
Late game is when you are looking to extend your lead and push out a victory. Gaia's Unstoppable Presence is your main way of dealing damage, aim to protect it and Latarr, The Daughter Of Destruction, so it burns your opponent on each turn.
Majik Mask - Three Eye Dark, can also deal some hefty damage if you can stick them on some warriors, and Lavictus, The Son Of Sunder, is your silver bullet, he's there when you need him to push out a win.
Use your control tools like Unstoppable Storm Surge, Clash With Unstoppable Darkness, and Titan War - Unstoppable Meltdown to lock your opponents resources down, and Eclipse, Unstoppable Death's Shadow to make sure they cant loop warriors for value.