I thought a little about this, but don't really have much other then some random ability ideas. The thought with strings is that you get them on different people and can pull them by making a cha check. I you pass the check then they do something beneficial for you, but if you fail then you lose the string.
I'll just quote myself here as I have been thinking about this some more. I could just rip off dungeon world if I actually knew about it. I think I should do it kind of class based.
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The fighter, I guess most people see the fighter as the threat man, but that still limits their ability to combat. I am thinking the fighter as a little like a social tank.
Savior: When you save someone from danger (it can be more then just physical danger) you gain a string on them as they feel in debited to you.
Mercy: When you decide not to kill some in violent combat. (Combat where they would have killed you if they could.) You gain a string on them. They literally own their life to you.
Protector: If you have a string with someone, then you are more desperate to protect them form harm. You give them a +2 AC when standing next to them in battle.
Glare: By staring down a person you have a string on, you can convince them to with draw from the arena without a argument.
Something I can't think of a name yet: When you have a string on someone, then you can stop anyone else from pulling strings attached to them.
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The rouge kind of plays the same in social circles as they do in the dungeon. They hide around avoiding it until they strike.
Secret Identity: You can have the knowledge to change your identity. When you change you identity, you lose all strings you hold and all attached to you.
Leverage: By stealing something secret or valuable, you gain leverage over someone. You have a string on whoever you took from so long as you keep what you took. They also won't like you much.
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The ranger is kind of of a loner so they have ways to remove strings.
Wild child: When you spend a week or more out in the woods you lose contact with people. You lose all strings you hold and all strings attached to you.
Animal friendship: When you have a string on an animal, you can pull it in order to make them your animal companion. (You still need to follow the normal rules for creatures you can pick and can only have one.)
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The wizard is more about the mind and they like a good colerbration.
Spell share: When you share a string on another wizard, the you can cast spells from their spell book as if it was your own.
Meeting of the minds: If you stud with someone on a topic you are both proficient in, then you each gain a string on the other.
Reasoned argument: When pulling on a string, you make a Int check rather then a cha check.
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I don't know what to do with the warlock except have their patron get strings on them.
Patron: Every time you gain a level in warlock, your patron get s a string on you. If your patron, gets five strings on you, then they take you mind body and soul. You pulled off to the hells, the far plane or where ever your patron resides. (Then I think you will be able to pass the strings on you to other people, and maybe some powers you use will add a string on you all by themselves.)
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For the cleric, I picture them being the class you either really want to get strings on you or really don't
faith and community: When you first meet someone who worships the same deity as you, then you each gain a string on each other.
Something something I need a name for this too: When you cast a spell on someone that you have a string on, then it works really well.(Off hand I can't think of a universal metric to improve a spell in 5ed.)
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For the paladin, I don't know. I think The duel idea works for them (and the fighter.) Also any fighter powers fit them too. I am also thinking maybe just giving them more magical abilities like preventing someone from being able to lie or commit evil when they have a string on them.
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The Barbarian would be a lot like the ranger, Like they might get wild child too and I ponder maybe an ability that lets then use rages to shake off or ignore strings.
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Druid
The druid is a little like the cleric? I see them being a little like the paladin in that their abilities are more supernatural. Like the ability to gain strings on elementals or to summon creatures that they have strings on
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I see the Bard as the string expert. Maybe they get proficiency in pulling strings, and lots of ways to get and use strings.
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I have no idea what to do with the Monk. Like zero.
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I see the Sorcerer as very peacocky. Well the wizard is more about results, the Sorcerer is more flash.
Spell styling: If you cast a spell just for show, then you can gain a string on anyone of lower level then the spell you used. (Assuming they get to see it first hand.)
