In most arena battlers, your account level (often represented as a King Tower or Base Headquarters) dictates the health and damage of your main defensive structures.

Therefore, understanding exactly how to efficiently generate account experience points (XP) is vital for long-term survival on the ladder.
Leveling Up the Deck
Every time you spend gold to increase a card's level, you are rewarded with a burst of experience points.

If your sole goal is to level up your king tower quickly, upgrading all of your low-level cards evenly is the most cost-effective method.
Complete the specific tasks associated with each troop.A high-level tower means nothing if your spells are weak.Farm it relentlessly. The Secondary Source: Clan Donations
This is a massive progression error; donating provides both gold and crucial experience points instantly.

You are essentially converting cards you will never use into base hitpoints and currency.
Donation TypeXP RewardSkeletons, GoblinsSmall amount of XP per card, but you can donate hundreds of them dailyFireballs, P.E. For more info about tower rush check out our own web site. K.K.ALarge burst of XP, but highly limited in how many you can give The Impact of King Levels
If your king tower was one level higher, it would possess several hundred more hitpoints, turning that loss into a win.

Never neglect your base progression; it is the silent protector that wins games.