Talk:Game Mechanics/@comment-98.237.245.151-20111130081527/@comment-189.35.130.88-20120109002527

Type advantage is type match up only, for the 0-400%. If an attack hits for one weakness, it doubles damage. That's 100% more, for a total of 200. Hitting two types for weakness as you described would double the total again, 400%. STAB was explained just above type advantage, so wouldn't be included in that. Crit has nothing to do with type match up, as far as I know.