@Enes it's not the case of weak vs powerful cards, since even to play strong cards like gigger impact, you need to play lots of other cards to build your level up, plus remember your putting them from a deck at random so you can't always guarantee to get what you want, when you want.
Deck building is a skill and part of the game and something I've not yet mastered myself, particularly with the recent change to how levelling up works which should make multi element decks much more usable.
Btw, one thing I still find a pain when you create a server, and all players logout and you get left with basically a big pile of nothing.
It's a shame you can't as server host play the party to the end and at least get a minimal reward like a single gem.
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)