Goliathmancer

Whenever the player does stupid shit, his subconscious lures in a goliath to yeet him across the room.

The goliath will be summoned next to the player. Its strength is a score of 1d20+10

The damage of the yeet is proportionate to 1d8+strength modifier

The goliath will disappear in 1d6 minutes after yeeting the player

This ability can be used once a day when the GM feels like it's appropriate. It will recharge on a long rest.