-Engraving is the single most useless upgrade in the forge relative to what it costs. All that it does is hold a secondary statistic in place if you decide to reforge an armor or weapon. Don’t spend one single gem on it.
-Do, however, fuse your gems to greatly increase their stat boosts, or your fighters and pets to increase their base stats.
-Once you get the jail at level 25, start taking people prisoner in the arena to earn bonus gold. The more prison cells that you have open, the more prisoners you can take, and the more gold that you can earn.
-Fight in the arena as often as possible to earn as much reputation as possible. Go take that reputation to the secret store and spend it on rare items, fighters, weapons and other goodies.
-At level 45, you’ll unlock the treasure hunt. Go dig here and you can earn loads of gold and new fighters.
-Don’t know what the hell stardust is used for? That’s okay. Once you unlock the laboratory, you’ll be able to use it to transform pets, fighters and weapons/armor.
-Want to earn more vouchers? In addition to earning it via the limited events, you’ll also earn them by competing in the world tournament (as a fighter, not a bettor). The higher you place in said tournament, the more you’ll earn per round. You can spend them in the secret store, too.
-Every five levels, you will get the chance to open a new newbie pack (they are in your backpack). Open them for huge bonuses.
-Another reason to fight in the arena as often as possible: MASSIVE amounts of bonuses that you can claim, such as the weekly bonuses and the reputation bonus. The higher the reputation the more reputation bonuses you unlock, and the better your weekly chest is.
-Want to earn the most experience possible relative to the amount of energy spent? Fight in the team battles instead of the solo battles in adventure mode. Plus, always have someone in the training ground for extra experience points.
-VIP bonuses are excellent; however, unfortunately, none of the free diamonds that you get throughout the game will count towards your VIP bonuses. You have to buy diamonds in order to get them. Once you do that, then you can claim the various daily bonuses that you will earn as a VIP.
-Send out more and more friend requests as you gain experience levels. You want to have more powerful buddies on your side, so that you can hire them as mercenaries later on, because if your lower level buddies progress slowly you won’t be able to hire them.