When destroyed, it can revive a fallen Ancient Gear Golem from your GY ignoring summoning conditions
Tormod is definitely the stronger of the two because black works better with the archetype and zombies have considerably more support that spirits, but you'll realistically play either one in your gravebreak deck, assuming your colors support them
On the other hand, when reviving, "No damage can be given to the opponent until the next turn." Instead of "peeping for the next 3 turns (destroy if conditions are met)" "The opponent sends up to 3 of his ATK 1500 or higher monsters from his Deck to his GY." The two severe disadvantages of are added, as before It has become a dangerous card to activate haphazardly
Although two can be used in a single turn, it is not advised, as the player may end up with the first card they switched out
Not only did I kill the creativity and joy in our homeschool, but I also squashed my intuition as a homeschool mother