The Blackheart Spire
To Bind a Vestige a player must either be a warlock, or possess the Ritual Caster Feat
Warlocks Gain the Spell “Bind Vestige” as a bonus spell that does not count toward their spells known.
classes with Ritual Caster may learn the spell as normal for its class
Level 1 Conjuration [Ritual]
Casting Time: 1 Minute
V, S, M (a cup of salt to trace the vestiges seal)
You Summon a vestige with which to enter a pact, upon completion of the Spell you must make a Charisma (Diplomacy) check with a DC equal to 10 + the Vestiges level. If you have willingly adhered to the Vestiges influence the last time you were bound to it you have advantage on this role. If you fail this check the Vestige imposes it influence on you for the duration of the Binding. Succeed or fail the check and you become bound to that Vestige for 24 hours, gaining the boon granted by the Vestige. The Number of Vestiges you can bind is equal to 1/4 your character level rounded down (minimum one). If a Bound Vestige would exceed this amount the spell fails. The maximum level Vestige you may bind is equal to 1/2 your character level rounded down (minimum 1)
Second Level or higher: you may forgo casting the spell as a ritual and instead cast it with a higher level spell slot, each level above first adds another 24 hours to the time the Binding lasts
Pact Boon: Pact of the Vestige
You Gain a favored vestige, you are permamently bound with this vestige and are concidered to have suceeded its binder check. The Favored Vestige does not count toward the total number of vestiges you may bind, and in addition you gain the abilities listed in its entry under the “mark of the Vestige” trait.