Blitz
Blitz is an almost completely different way to play the game. it mixes a card game with your typical Halo Wars. It still has the same rock-paper-scissors thing but instead you have to make your own deck where you put cards down into battle by using energy found by killing enemies or around the map.
Changes
In blitz some things change like how the way some cards work or the leader abilities. The abilities can no longer be gotten through some form of skill tree but now they become cards which you can get and use in a fight by using energy. As of now there is only one unique map used for blitz which will probably change in the near future. Also the teleport has a shorter range and now more used for teleporting up ledges.
Cards/Decks
Cards can be obtained through opening packs and earning them. you can get these packs by playing the campaign, levelling up or doing daily/weekly challenges. There are different rarities of cards with the rarest being legendary. The chances of getting a legendary are around 7 percent in a regular pack. Once you get a card you need to put it in your deck so you make a deck for the leader of your choice and favourite it. Once done you can bring it into battle.
Aim
The aim of blitz is not to eliminate the enemy but to capture the points. Once you have captured 2 or more points you start to gain points and the first to 200 wins. you can contest a point by having a unit on the point and you can take a point with no units on. You can have a 1v1,2v2 or 3v3.