The horn tips over: two pawns join your pocket, a knight or a bishop (at random, even odds) joins them, and you gain 1 draft reroll.
You draft Cornucopia in either mode. Activated: you choose when to use it, and using it is your move for that turn.
As a item card, it is a one-use consumable, drafted in either mode.
“It never runs out. It does judge your appetite.”