Once the first triggered ability is on the stack, it won't trigger again, even if more damage is prevented and more incarnation counters are put onto it
It also sets up losing your entire turn and getting 2-for-1d
Equipment tutors have a place in that they are most often used to grab consistency pieces to help a deck get set up, and in the late game, they grab something to try and end the game
Based on the price trends of other Special Guests cards from recent sets, I expect this variant to settle between $25-27, before gradually climbing up in price
Enlightened Tutor may get you an enchantment or artifact for a single mana, but you lose a card (the tutor), and you still need to cast said enchantment or artifact
I usually play decks that focus on the graveyard (another popular strategy), so Rest in PeaceRest in Peace gives me nightmares