Syndra Jungle
is a pretty rockin' jungler.
primary items:

alternate/situational items:
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Give it a shot. She has fast clears, unbeatable ganks, and wonderful counter-jungle potential. You have to learn to use W and E effectively in the jungle to avoid taking tons of damage, but it is well worth it. The changes to mana vamp on the spirit items made this possible. As long as you are aiming your hits carefully, you get 3% damage back, per mob, in mana for every spell you cast. It's great!