I am wondering can it cancel Sophie’s direct damage by Mark Hurrigan? Since there is no such constraint that this effect can only be activated once per turn, Mark may have infinite skill value. Do I understand the effect correctly? Or maybe the direct damage from Sophie cannot activate this effect?
Mist-Pylon - Back
As an additional cost for you to enter Mist-Pylon, investigators at your location must spend 1 clues, as a group.
– H. P. Lovecraft, At the Mountains of Madness
If you control the seal, and it is activated: You unleash the seal’s power. Place the seal on this Mist-Pylon. For the remainder of the game, whenever an investigator at a Mist-Pylon would be dealt 1 or more damage and/or horror, cancel 1 of that damage or horror.