Mattergy Gameplay Explanation

About Mattergy, from BoardGameGeek:

Mattergy is a strategic deck-building card game with direct player interaction and powerful card synergies. The existence of everything is on the brink. The fall of the first shaper, escalated the fight for succession. Defend your standing as an aspiring shaper and fight the herds of rivaling pretenders. The main resource in the game is matter, which you will transform into mighty creatures to build your following. All players have access to an updating market of creatures in the middle to build their deck. In your turn you will spend matter to create and play creatures of four unique factions, use their special abilities, combine and attack your opponents. Playing intelligent strategies will give you resources to obtain powerful progression cards that will strengthen you the rest of the game. But be aware – every turn is a battle, and you have to defend yourself from the attacks of the other players! If you can't defend yourself, and you have no energy left, you lose. To win, you will need to handle your resources wisely and launch devastating attacks to erase your opponents. Mattergy's distinctive artworks and characters will open up a fantastical new world to explore. -description from designer