This is Hardcore PX format, an altered PX format where you got to lose two matches in order to get eliminated from the war (all other rules from PX format apply here as well). As people would like to say, you got 2 lives. If you lose a match (1 life), you can change your deck for the remaining life you got. Subs must have the same number of lives as the players they are substituting. However, if a sub has more lives than the player they want to substitute, they replace him by using lives he had (ex: you got 2 lives and player that goes out has only 1, so you are subbed in his place with also only 1 life). The team with remaining players at the end is declared the winner.

This format is originally created by team Popsicle Xuicide (PX). It is also known as Double Crossfire format.

This format requires opposing teams to create their line ups (no specific order needed) with a certain amount of substitutes in case a player in the main line up is unable to compete. Players can challenge any player from opposing team's line up. Player that loses one match is eliminated. The team with remaining players at the end is declared the winner.

This format is originally created by team Popsicle Xuicide (PX). It is also known as Single Crossfire format.