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Drag a card to make the call
You now play cards by dragging them up out of your hand. Each one shrinks into a stack at the side of the screen, so you can see your whole call build up: the play first, then any boosters and a tactic. A booster that doesn't fit the play you picked bounces back. When you're happy, one End Turn button runs the snap.
The clip shows a first down: Four Verticals goes down, a Fresh Legs booster joins it, a Big Leg booster is turned away, and the play runs against a Cover 2 defence.