Zon-Kuthon

protection from chaos 3/day, arrow of law 2/day, or pain strike 1/day

Three times per day, you can make a strike of the endless against an opponent. You must declare your use of this ability before you roll your attack, and if your attack misses, the strike is wasted. You make an unarmed strike against your target, and if you hit, your target must succeed at a Fortitude save (with a DC equal to 10 + 1/2 your Hit Dice + your Wisdom modifier) or be blinded for 1d4 rounds. This ability doesn’t work against creatures without eyes or who see by means other than vision (such as with blindsight or tremorsense). If you have a ki pool, you may spend 1 point from it to increase the saving throw DC of this ability by 4.

Once per day, you can make an unarmed strike that deals agonizing pain to a single target. You must declare your use of this ability before you roll your attack, and if your attack misses, the strike is wasted. You make an unarmed strike against your target, and if you hit, your target must succeed at a Will save (with a DC equal to 10+ 1/2 your Hit Dice + your Wisdom modifier) or take 2d6 points of nonlethal damage each round for the next 10 rounds as terrible pain rips through its body. Additionally, during those 10 rounds, your target is nauseated, and you gain a +4 circumstance bonus on Intimidate checks against it. If the target succeeds at its saving throw, it instead takes 1d6 points of nonlethal damage per round for the next 10 rounds, and is sickened for those 10 rounds. If you have a ki pool, you may spend 1 point from it to increase the saving throw DC of this ability by 4.

obscuring mist 3/day, invisibility 2/day, or deeper darkness 1/day

Once per day, you can use shadow walk as a spell-like ability. When you reach your desired endpoint along the shadow path, you materialize directly where you desire instead of being shunted in a random direction as you normally would. Furthermore, if you use this ability on an unwilling creature, the creature takes a –2 penalty on its saving throw.

Once per day as a standard action, you can summon an interlocutor kyton (Pathfinder RPG Bestiary 3 174) to serve you. You gain telepathy with the interlocutor to a range of 100 feet. The kyton follows your commands perfectly for 1 minute for every Hit Die you possess before it vanishes back to its home on the Plane of Shadow. The interlocutor refuses to follow any commands that would cause it to act in an overly good or chaotic way. Such commands earn a spiky snarl of disapproval, or could even cause the kyton to attack you if the command is particularly egregious.

compel hostility 3/day, touch of bloodletting 2/day, or vampiric touch 1/day

When you successfully trip an opponent using a spiked chain, your tripped opponent immediately provokes an attack of opportunity from you. In addition, you gain a +2 bonus on any attacks of opportunity you make against opponents you have tripped with a spiked chain within the last round.

All the training you have done in perfect darkness has left you with the uncanny ability to sense your surroundings even in the blackest night. You gain blindsense with a range of 20 feet. If you already have blindsense with a range of 20 feet or greater, instead increase the range of your blindsense by 10 feet.