15) Look for the Fusion Hexagram to become available in the store at some point.
Right now, it’s not available at all, but it still shows up in the store. Once it does become available, build it and you will be able to fuse monsters together. When you fuse monsters, they will become a brand new and entirely different monster. The new monster will have a rarity rating higher than that of the monsters that you combined together.
14) Awaken your monsters to power them up and to possibly increase their rarity.
Awakening your monster will change both its name and its form. To awaken a monster, you will need specific essences, which are different for every monster you find. Tap on Awaken button and tap on a monster to see the essences that you will need. Once you get them, come back and you can awaken them regardless of the experience level of the cards.
13) Beat the ruins to unlock the Cairos Dungeon.
Once you beat the Kabir Ruins, you’ll unlock the Cairos Dungeon. This is where all of the good stuff is. This is where you can find the essences that you need to awaken monsters, rare rune combos, limited time dungeons that you can get big bonuses from, or even just tons of experience points and mana. Plus, these dungeons can be some of the most difficult ones in the whole game.
12) Where to get more essence?
The essence dungeons are the Hall of (whatever) in the Cairos Dungeon area, but aside from the Hall of Magic, the other elementals are available only one day per week. When they do become available, play them as often as possible so that you can rack up the necessary elemental essences to awaken your monsters.
11) How to change low-rarity essences into high-rarity essences
Purchase the Fuse Center and you will be able to do this. You’ll be able to put low rarity essences together to make medium essences, and you will be able to put medium essences together into high essences. The higher the rarity level of the monster that you want to awaken, the more rare essences that you will need.