CHANNEL SMITE and HOLY CASTIGATION

[Chess Pwn]

if I have HOLY CASTIGATION and CHANNEL SMITE does that let me channel smite with positive energy and hurt fiends?

I guess along with this is LIFE SAPPING and negative energy.

HOLY CASTIGATION: You combine holy energy with positive energy to damage demons, devils, and their evil ilk. Heal spells you cast can damage fiends as though they were undead.

LIFE SAPPING: You draw the life force out of your enemies to heal your own wounds.
When you cast a harm spell and damage a single living creature, you
regain Hit Points equal to the spell level of your harm spell. If you aren’t a living
creature, you gain no benefit from this feat.

CHANNEL SMITE: Instead of casting harm or heal, you siphon the destructive
energies you channel through a melee attack and into
your foe. Make a melee Strike. This Strike has one of the
following additional effects on a success.
• If you channel positive energy and the target is
undead, you deal extra positive damage equal to that
of a single-target heal spell.
• If you channel negative energy and the target is
a living creature, you deal extra negative damage
equal to that of a single-target harm spell.
If your Strike fails or hits a creature that isn’t affected by
that energy type, the spell is expended with no effect.
If you channel positive energy, this action has the good
and positive traits. If you channel negative energy, it has the
evil and negative traits.

[Lelomenia]

Depends on how they end up wording it. If they end up saying you cast as part of the attack (PF1 Magus style), it works. If they go with ‘expend a slotpointpowerchanneluse’ (5e Pally style, i understand why they couldn’t decide how to word this), then no. As of now, no, but this wording can’t stick because as written you don’t expend uses when it works, only when it fails (its clear that they want it to expend uses, and I’m guessing just couldn’t figure out how to structure the mechanic in this system).

But the specific words matter, as you have observed.