Normally you can't play 2 of the same secrets at once.

However, let's say you have freezing trap already in play, and your deck still has 1 more freezing trap and no other secrets. If your mad scientists dies and triggers the deathrattle, would it cast the additional secret or just do nothing?

1 Answer 1


"If the only Secret left in your deck is a copy of one you already have active, Mad Scientist will draw nothing at all."
-- Ben Brode, senior game designer on Hearthstone.

  • 2
    Related: Kezan Mystic cannot give you a duplicate secret as well, as demonstrated by this Hearthstone Mythbusters video: youtu.be/d34VAYF03ZE?t=52s
    – Nzall
    Commented Aug 23, 2015 at 21:57
  • Huh. I thought it drew the secret out of the deck and overwrote the current secret, thus wasting the one in the deck. Commented Jun 22, 2016 at 17:03

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