The Illrigger's feature progression continuously expands the seal system.

1st level: Baleful Interdict

Baleful Interdict provides the seal pool and the ability to place seals on nearby creatures.

The number of seals increases with level, while seal damage improves from d6s into larger multi-die damage later in the progression.

1st level: Forked Tongue

Forked Tongue grants Infernal and additional language flexibility.

It improves later with stronger insight into other creatures' intentions.

2nd level: Combat Mastery

Combat Mastery provides a martial specialization chosen from the Illrigger's own list.

It can change movement, defense, weapon ability use, ranged pressure, or close-combat behaviour.

2nd level: Interdiction

Interdiction grants Interdict Boons.

Additional Boons are learned later.

They modify what happens when seals are burned or allow seals to be expended for separate effects.

3rd level: Diabolic Contract and Invoke Hell

The Contract is the subclass.

Each Contract grants two Invoke Hell options and later subclass features.

Invoke Hell returns after a short or long rest.

5th level: Extra Attack

The Illrigger attacks twice when taking the Attack action.

6th level: Infernal Conduit

Infernal Conduit adds a pool of d10s used to transfer vitality through Invigorate or Devour-style effects.

The pool grows as Illrigger level increases.

Later base features

Blood Price, Terrorizing Force, Superior Interdict, Infernal Majesty, and Master of Hell deepen the class's target pressure and infernal presence.

At 20th level, Master of Hell is the capstone of the Revised class.

How the features work together

Baleful Interdict supplies the marks.

Interdict Boons decide what those marks can do.

Combat Mastery shapes martial combat.

The Contract adds specialist tools.

Infernal Conduit adds vitality manipulation.

High-level features make seals and fear increasingly oppressive.