Rubber Person (5e Race Variant)
From D&D Wiki
Rubber Person Traits
The following traits replace the normal Ability Score Increase from the human race.
Ability Score Increase. Your Strength and Dexterity scores each increases by 2.
Rubber Body. Your entire body is made of highly elastic rubber. Anyone of your body parts can stretch up to 30 feet. You have immunity to nonmagical bludgeoning and immunity to lightning damage.
Rubber Fortitude. You can't be paralyzed. You are also unnaturally tough, you gain the Tough feat.