User blog comment:Fistful of Force/Spirit of the spectral Wraith/@comment-4966790-20130213055418

1. It gives mana regen, but you can still use it on manaless champs

2. It gives 25% bonus damage to MONSTERS, only jungler monsters and not minions.

3. It's a good cost efficient item, get it if you are an ap jungler or a sustain mage and your team does not need Wota