Ascetic Grandmaster A5E

The grandmaster only uses 5 feet of movement when standing from prone and can make a running jump after moving only 5 feet rather than 10.

When the grandmaster makes a Dexterity saving throw against an effect that deals half damage on a success, they take no damage on a success and half damage on a failure.

The grandmaster has advantage on saving throws against spells and magical effects.

After the grandmaster makes a melee attack against a creature on their turn, until the end of their turn they do not provoke opportunity attacks from that creature.

The grandmaster can take a reaction on each creatures turn.

When the grandmaster hits a creature with a melee attack, they can force it to make a DC 18 Constitution saving throw. On a failure, it is stunned until the end of the grandmasters next turn.

The grandmasters AC equals 10 + their Dexterity modifier + their Wisdom modifier.