Something I recommend when trying to learn a champ is to well, watch other people play. Look at what they do right as far as specific skills and tactics go. It's much more engaging to be able to visualize the tactics as opposed to simply being told. For example, I imitated FD's Galio after he destroyed me with it! I learned Janna from watching other Jannas play. I basically had never played Janna before and then jumped straight in and was pretty good with her. There's always things to work on, but I find that watching other people for timing etc. is the best. Like, I learned a lot of Lux tricks from playing with HGR as opposed to playing Lux myself.
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Boomshine
~Justin_Crossing