I played this game a few years back. 4 I believe. I don’t know the name so I would really appreciate it if someone told me because I want to buy it and play it again. All I remember is that it’s sort of a strategy/adventure game. You are this creature that fights with other creatures using a unique strategic battle system. There’s an open world you can explore. I don’t remember the story of the game, but I will try to describe the battle system. If I recall correctly after you challenge your opponent you end up on a special battle ground where you (pick the cards from your deck and summon monsters=not sure about this part, I don’t know if you pick cards or you simply have like –mana- or some other magic power) and your opponent have timed turns to summon your monsters. For example NPC plays first, after that it’s my turn, then his again, etc. You can add powers to your monster, you can’t attack in the the same turn you summoned the monster. The goal is to kill the opponent, but you can’t if there are creatures protecting him. I said it’s a strategy game because you need to plan your game and outsmart NPCs. After you beat the opponent you can summon creatures he used in the upcoming battles. That’s all I remember. I know you have little to work on, but if anyone has any ideas, please share, I would really appreciate it.

Etherlords?

That's the one, thank you so much !