Evangelists are a class of velstrac. "Evangelist" is their proper name in velstrac society;12 they are also known as chain devils.34
Evangelist velstracs resemble lean humans, but have deathly pale bluish skin covered with vicious scars. They are always wrapped and draped in barbed chains that cut their flesh and weigh them down; a typical velstrac weighs more than 350 pounds.12
Evangelists have embraced the chains that once bound their race in the pit of Hell. They have a divine magical connection to chains, granting them the ability to animate chains in their proximity and cause them to sprout razor-sharp blades.12
Like all velstracs, evangelists have an unnerving gaze that inspires terror in its victims. An evangelist can cause any who look upon its face to see the visage of a long-lost loved one or hated enemy[citation needed], causing them to quake with fear.12
Most of the velstracs who still reside in Hell are evangelists.5
Paizo referred to evangelist velstracs as simply kytons or chain devils in some early Pathfinder campaign setting products.