Hello All.  I have a plethora of champions and am having a hard time keeping track of which champ does what and where I should use them.  I have somewhere in the neigmborhood of 140 5*50 to 6*60 champs in my active lineup, about 45 or so more 5*50 in vault (some udplicates) plus a bunch more that are undeveloped duplicates for Faction Gaurdians.  I am having a bit of difficulty keeping track of who does what and what particular battles/opponets each is good for.  This gets worse every time I get a new one and try to work them in, then I sometimes lose track of of older champs I have cycled out of a particular battle.  How do you experienced players keep track of what the diff champs skills and which opponents they are best used against?

thanks