Howling Mine

Oct 4, 2004 · If Howling Mine leaves the battlefield before it resolves, then the last known tap or untap state of the card is used for resolution.

Oct 4, 2004 · The additional draw is separate from any other draw during your draw step. It happens when the triggered ability resolves.

Oct 4, 2004 · It does not trigger at all if this is tapped at the start of the draw step, and it checks this again on resolution.

Apr 15, 2013 · The triggered ability is put onto the stack after you have already drawn your card for the turn.