This is an obligatory position for players who begin their journey with Mortal Kombat 11. The newest installment in the series features a lot of new mechanics, attacks, combos, and other moves worth practicing.
As the name suggests, this is where you can test your skills in performing Fatality. This is a special finisher available in Mortal Kombat 11, which results in the opponent dying in a brutal way. Depending on the type of fatality, you have to be within a specified range of your opponent. There is a rectangle displayed on the ground that indicates where your character should stand when performing the finisher.
You are bound to spend most of the time playing the Mortal Kombat 11 training mode when learning how to play with a new character. Select your fighter and opponent, and hop into the arena. There are a lot of training options for you to modify to fit your needs. For example, you can specify how your opponent is supposed to behave to practice a given fight scenario. In the training options menu, you can also check all the relevant information regarding the base moves of each character, combos, abilities, finishers, etc.