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I run a both a jund extended deck and a jund colored EDH deck so I think I know a little about this kind of deck.
I would suggest taking out he Trace of Abundance and some of your duel color lands for 4 Savage Lands . I also would not use the Putrid Leech as you will be needing all your creature to either overrun your opponent or devourer them to something like a Predator Dragon .
you also seem to be lacking some good four drop creature to cascade into. perhaps a couple Dragon Whelp ? you also need a five cost drop if you want to keep a smooth mana curve after your 1-4 rush phase. perhads you could use a Sarkhan the Mad . sack a few little 1/1 creature tokens to get a nice 5/5 flyer.