hypnoahegao said:
I have yet to try warlock! What spells does Old One offer?
The interesting ones from the Old One should be Tasha's Hideous Laughter (kinda? I mean, it's good crowd control), probably Phantasmal Force (especially since the target believes whatever they see to be true, rationalizing any inconsistency as a mistake on their part), and Dominate Person (duh).
The pretty interesting things about GOOlock are their features though, imo.
At 1st lvl, you can establish a one-way communication with any creature or humanoid that understands at least any ONE language (not even one of YOUR languages!). Useful with friends, but take the Actor feat and you'd be able to mess with someone by making THEIR voice give THEM devious and strange suggestions. Like their inner consciousness attempting to break loose.
At 14th lvl, with "Create Thrall", well... Read it for yourself
THE GREAT OLD ONE GIVETH
At 14th level, you gain the ability to infect a humanoid's mind with the alien magic of your patron. You can use your action to touch an incapacitated humanoid. That creature is then charmed by you until a remove curse spell is cast on it, the charmed condition is removed from it, or you use this feature again.
You can communicate telepathically with the charmed creature as long as the two of you are on the same plane of existence.
Funny thing, there is no upper limit on how long it stays your thrall. Or how many thralls you can create each days (you could swap a thrall that has outlived its usefulness). With a high enough Charisma score, you can probably make them do a lot of stuff.
Then, well... You probably know already most of the Enchantment spells all Warlocks have access to: Friends (cantrip), Charm Person (1st lvl), Crown of Madness (2nd lvl), Enthrall (2nd lvl, kinda MC? They can't take their eyes off you for the duration), Suggestion (2nd lvl), Enemies Abound (3rd lvl), Mass Suggestion (6th lvl), Feeblemind (8th lvl)
As for your pact, I personnaly really like Chain (invisible flying scout), but Tome would probably be more useful, especially with the Rituals added with Invocations.
Talking about Invocations, you'd probably want to pick up the at-will Disguise Self, maybe the at-will Silent Image (or just grab Minor Illusion? Not sure), and pact-specific EI.