OracletextT: Add C.
<br>4, T: Investigate.
<br>At the beginning of your end step, if you sacrificed three or more clues this turn, transform Havengul Laboratory.
<br><br>---------------------
<br><strong>Havengul Mystery</strong>
<br>When this land transforms into Havengul Mystery, return target creature card from your graveyard to the battlefield.
<br>When the creature put onto the battlefield with Havengul Mystery leaves the battlefield, transform Havengul Mystery.
<br>T, Pay 1 life: Add B.