When this card is discarded, select an enemy follower on the field and engage it.
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Select an enemy follower on the field. Engage it and draw a card.
QIf I select an engaged enemy follower, do I still draw a card?
AYes. Since the enemy follower is already engaged, you can't engage it, but you do draw a card.
QIf I discard this spell during my end phase because I have too many cards in my hand, do I select an enemy follower on the field and engage it?
AYes, you do.