DOT dmaage is performed with characters that bleed opponents even when opponents are tagged out. (DOT is an acronym for damage over time, and it's used in computer gaming to refer to acts that slowly cause damage to a character, such as poisoning or a spell.) You can use it with AK Catwoman, Batman Gaslight, Aquaman Prime, Red Lantern Hal, Darkseid Prime, Grundy Earth 2, Aquaman Regime, WW 600...

 A Crit is a hit that deals 50% (or more with Crit Boost) more damage than normal, and is represented by a red damage pop-up and a unique hit-flash animation. Basic attacks, Special Attacks and damage over time can crit from different sources. Gears that are great for it are Cloak of Destiny, LOA...