Progressing in any competitive arena battler requires a massive amount of in-game currency.

The developers intentionally make gold scarce to encourage microtransactions, but there are always workarounds.
The Daily Grind
The simplest and most consistent way to earn gold is by completing every single daily task available.

Timing your chest unlocks so that you open the large ones while sleeping and the small ones during the day is a massive efficiency boost.
Play casual modes instead to practice.Plan your play sessions accordingly.Hoard your gold early on. Donation Farming
Joining an active, fifty-person clan is arguably the most lucrative decision a free-to-play user can make.

Even if your clan does not win first place, the participation rewards far exceed anything you can earn playing solo.
ValuableBest Way to EarnBasic CurrencyOpening silver and gold chests consistentlyGemsPushing high on the trophy road Smart Spending is Earning
Earning gold is only half the battle; the other half is resisting the urge to spend it foolishly.

It requires patience, but maxing out your deck for free is the ultimate flex in the arena.

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