You can use the lore tracker included with the Disney Lorcana starter decks, the games official companion app or simply another way of counting to 20, such as a dice or piece of paper
You generally dont have to describe your deck card-by-card if you say youre playing cEDH, or playing stax, or playing elfball
Lets take a look at a couple of global enchantments
The ultimate grind card, Kolaghan's Command is almost always a guaranteed 2 for 1, often doing so in a way that directly effects the board
This deck started out as a defenseless goblin tribal deck but I would always get crushed because I would have some goblins out then someone would wrath the board and I wouldn't really be able to do anything for the rest of the game
(704.5r) Your Two-Headed Giant team can no longer lose because you have 0 or less life or fifteen or more poison counters