Havengul Laboratory

“T: 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.”