Battle Line
How does Scout change your hand and the draw step?
The Guile Tactics section describes Scout's three draws and two returns, and the normal end-of-turn draw is taken by it.
Playing Scout uses your turn. Draw three cards from one or both decks and add them to your hand, then return any two cards from your hand face down on top of their decks. Your hand ends at seven, and you do not draw again at the end of the turn.