Choking with Void Blessing

[Okros]

Hello! I've been wanting to make a grappler for quite some time, and have found brawler to be really good at just this.
Greater grapple, rapid grappler and pinning knockout(not needed for question) seemed great for me - but I just discovered the void blessing from warpriest.

Quote:

Airless Touch (minor): At 1st level, with a successful melee touch attack you can steal the breath from an opponent's lungs, leaving it unable to speak, use breath weapons, cast spells with verbal components, or do anything else requiring breath for 1 round. If the target fails at a Fortitude saving throw, it's also staggered for 1 round as it catches its breath. If the target was attempting to hold its breath, it can no longer do so: it must breathe on its turn or risk suffocation and unconsciousness. Creatures that don't need to breathe are unaffected. Regardless of whether it succeeds at its saving throw, the target is immune to further uses of your airless touch for 24 hours.

My question is, if I dipped one level into the Warpriest(sacred fist), can I:

Standard action: Touch attack with blessing (No save on drain)
Move action: Maintain grapple
Swift action: Grapple combat maneuver (Chokehold)

Which to my understanding would then render them unable to breathe the following turn, which would then knock them unconcious.

[DM_Blake]

Looks valid to me, though they won't necessarily fall unconscious right away:

SRD, Suffucation wrote:

A character who has no air to breathe can hold her breath for 2 rounds per point of Constitution. If a character takes a standard or full-round action, the remaining duration that the character can hold her breath is reduced by 1 round. After this period of time, the character must make a DC 10 Constitution check in order to continue holding her breath. The check must be repeated each round, with the DC increasing by +1 for each previous success.

When the character fails one of these Constitution checks, she begins to suffocate. In the first round, she falls unconscious (0 hit points). In the following round, she drops to –1 hit points and is dying. In the third round, she suffocates.

As a GM, I would insist that the check to maintain the grapple is done first in your round, but I don't think the order of actions changes this combo, and I'm not even sure that the RAW requires you to maintain the grapple first.

Once you hit them with this spell and then apply your chokehold, they should have to start those Constitution checks on their next round.

[Weirdo]

The constitution checks are for a character holding their breath:

Suffocation wrote:

After this period of time, the character must make a DC 10 Constitution check in order to continue holding her breath.

Airless touch says you can't hold your breath; you must breathe or suffocate.

Chokehold says you can't breathe; you have to hold your breath or suffocate.

If you are affected by both you just suffocate:

Suffocation wrote:

When the character fails one of these Constitution checks, she begins to suffocate. In the first round, she falls unconscious (0 hit points).

[Okros]

That was my understanding as well. Bit strange there's no save on the actual removal of the air though.