u/WholsThisIDontKnow

Gives you a 5 mana cleanse, doesn't use up a skill slot, and has a negligible downside. Opens up a ton of options and builds and requires no setup to still be useful in a run.

My favorite build I've done with this is mammoth tusk (15 damage melee, inflicts bruise and confusions, gives drowsy debuff) but there's literally just so much you can do with this and the fact it doesn't take up a spell slot or gear slot is just icing on the cake.

Beepis + Numbing Leaches + Spread Sorrow + Strange Marble = 1 MILLION LEACHES

The only thing I would want to improve is the max mana, as 30 isn't enough for this cat.