I know many people have issues with the custom lineage option, but it's a level of customisation that some people really want and appreciate.
I'm not sure the custom lineage would be overpowered for multiplayer, as the actual custom lineage is rather thin in terms of features.
Creature type. You are a humanoid. You determine your appearance and whether you resemble any of your kin.
Size. You are Small or Medium (your choice).
Speed. Your base walking speed is 30 feet.
Ability Score Increase. One ability score of your choice increases by 2.
Feat. You gain one feat of your choice for which you qualify.
Variable Trait. You gain one of the following options of your choice:
- Darkvision with a range of 60 feet.
- Proficiency in one skill of your choice.
Languages. You can speak, read, and write Common and one other language that you and your DM agree is appropriate for your character.
It's on about the same level as Variant Human, not the most powerful, but the feat allows for a level of specialsation that can make you feel powerful in the early levels.
