You will also get amazing rewards in the daily quests and also in season-ending quests.

This was true a few years ago. Nowadays not so. Nowadays players mostly earn Alchemy and Legendary potion charges. Cards are very rare. I still remember earning at least one reward card per day for completing the daily quests. But nowadays you need luck to earn a card.

I am playing Splinterlands since 2018.12.30.

Good luck and have fun.