Buff a friendly unit in your base, then move it to a battlefield. (If it doesn't have a buff, it gets a +1 buff.)
Darius, Executioner
Starhound
Rumble, Scrapper
Tasty Faefolk
Chaos Rune
Jhin, Murderous Artist
Dragonsoul Sage
Factory Recall
Dropboarder
Ezreal, Dashing