Dungeons 3

This is done in the "I Am Your Father!" level. In this level you're required to sacrifice 90 Heroes at a minimum. You can only sacrifice Heroes that are not dead so you need to build a Prison, which will cause downed Heroes to become unconscious instead of dead. With Heroes in your Prison, grab them with your Hand and drop them into the pit. Once you have sacrificed 90, you can summon the Ultimate Evil via which will end the level. However for this trophy you'll need to sacrifice more.

The extra requirement is 150, which will be shown once you reach 90:

To get 150 just wait for more heroes to invade and toss all the unconscious Heroes into the sacrificial pit. Once you've sacrificed 150, the trophy will pop.