Moreover, these gun skins cost coins instead of gems and required a certain league to unlock them. Originally, in 11.0.0, there were 12 weapons with only one weapon skin for each weapon, and they all have the same skin theme: gold plating. Weapon skins were first introduced in the 11.0.0 update, but the overall weapon skins system was revamped later in the 16.4.1 update.