So, for those of you who don't play Dungeons and Dragons, warlocks, unlike regular wizards and sorcerers, are bonded to one specific patron and have fewer spell slots, but can also use invocations, or spells that can be cast at will, and special boons from their patrons.
Such a class would thematically fit very well with the dark fantasy game I'm making, but I'm at a loss on how to make the equivalent of a D&D warlock as an RPG Maker class. Any help would be much appreciated.