Homebrew
Dwarven Resilience. Velma has advantage on saving throws against poison.
Sneak Attack. Once per turn, Velma can deal an extra 10 (3d6) damage to one creature she hits with an attack if the following conditions are met:
Stonecunning. Whenever Velma makes an Intelligence (History) check related to the origin of stonework, she is considered proficient in the History skill & add double her proficiency bonus to the check, instead of her normal proficiency bonus.
Battleaxe. Melee Weapon Attack: +4 to hit, reach 5', one target. Hit: 7 (1d10 + 2) slashing damage.
Heavy Crossbow. Ranged Weapon Attack: +5 to hit, reach 5' or thrown 100'/400', one target. Hit: 7 (1d10 + 2) piercing damage.
Cunning Action. Velma can take the Dash, Disengage, or Hide action.
Steady Aim. Velma gives herself advantage on her next attack roll on the current turn. She can only use this feature if she hasn't moved during this turn, & after she uses this feature her speed is 0' until the end of the current turn.
Uncanny Dodge. When an attacker that Velma can see hits her with an attack, she can use her reaction to halve the attack's damage against her.
The Dread Domain of Mordent