Duo Queue

Gold augment

Gain 2 random 5-cost champions and 2 copies of a random component.

Duo Queue enables

Bench

The bench is the storage row off the board, with 9 slots by default.
Champion Grant

A champion grant is a champion handed to you that is yours to keep.
Item Reward

An Item Reward puts an item straight into your hands, outside the usual ways of earning one.