For the majority of players, the only time they ever engage in a battle is when there are trophies or chest rewards on the line.

You can lose fifty times in a row without dropping a single trophy or damaging your account's progression in any way.
The Ultimate Laboratory for New Decks
If you see a bizarre new deck on YouTube and immediately try it in a ranked match, you will likely lose because you don't understand the specific synergies yet.

This allows F2P players to find out exactly how a maxed-out deck will perform without having to spend millions of gold upgrading the cards first.
Use Friendly Battles to memorize specific spell damage numbers.If you lose to a specific card on the ladder, ask a clanmate to play that card against you repeatedly until you figure out the counter.Friendly Battles are great for building clan morale. Drilling Micro-Interactions
Beyond macro-level deck testing, Friendly Battles are the only place you can safely 'drill' incredibly specific micro-interactions.

You practice the exact placement over and over again until it becomes pure, thoughtless muscle memory.
The ObjectiveHow to Drill ItMastering Spell Timing (e.g., Predictive Logs)Have your partner repeatedly throw Goblin Barrels while you practice releasing the Log at the exact optimal millisecondLearning Aggro Ranges (Kiting)Have your partner drop a P.E.K.K.A; practice placing an Ice Golem on different center tiles to see which one pulls the P. If you have any questions regarding where by and how to use tower rush, you can get hold of us at our own web-site. E.K.K.A furthest The Social Benefit
You are not just improving your own skills; you are raising the competitive floor of your entire team.

Stop stressing over your trophy count for a few hours.