That doesn't sound like you were using variable strategies. Quite the opposite. It sounds like you were pigeon-holing yourself into one specific, extremely effective (arguably overpowered/broken) strategy, even to the extent of "hey this works well for fire, i'll do the same exact thing with poison. and ice."
In any case, there's a simple mod out right now that reverts MaxResistance to 200%. You can use it and then you can still find some fun in this game.
