Klassic Female Ninja Skins are back! They will be on rotation in the premium shop till 14th of June. A hint to save time krystals is to grind the character towers unlocking
Mortal Kombat 11: How To Get Every Costume | Skin Unlocking Guide - Gameranx
Mortal Kombat 11: Klassic Arcade Ninja Skin Pack 1 (DLC) DLC STEAM digital for Windows, Steam Deck