Abilities / spells and alignment interactions

I am playing a lot of good unchained monk my next ability that I want to take is ki leech, ki leach the qinggong monk power refers to the spell of the same name, which is an evil necromancy spell.

My question is that normally a character who is good can't cast evil spells, but this being a monk power, does the ability still interact with my alignment the same way the spell does.

anybody able to answer this for me.

First off, punctuation and proper formatting really helps to get people to answer you, because they don't have to read your post twice to figure out the question.

Second, nothing keeps you from using an evil spell anyway, as long as you're not a good druid, cleric or paladin. So even if casting this spell is an inherently evil act (which it shouldn't be in my eyes, but that is for your GM to decide), nothing keeps you from doing it.

By the rules, nothing says that the spell is modified in any way, so it keeps the [evil] descriptor.

Even IF casting spells with an evil descriptor is an evil act at your table, if you are playing a good character who doesn't sit on the brink of an alignment shift anyway, I think it woul be kind of a dick move to shift your alignment just because you draw some ki out of enemies whom you can totally punch to death without any alignment issues.