Lifegain relies heavily on enters-the-battlefield triggers to gain life and generate value, such as Hinterland Sanctifier, Aunt May, Haliya, Guided by Light, and Case of the Uneaten Feast's life-gain trigger; Torpor Orb completely shuts off all of these triggers while our own core engine (landfall triggers on Mightform Harmonizer, Sazh's Chocobo, Earthbender Ascension, and activated Escape Tunnel/Ba Sing Se) is unaffected since it isn't enters-the-battlefield based. Sheltered by Ghosts is efficient removal that exiles their best threat, like Amalia Benavides Aguirre before it grows out of control, while giving us a lifelinking blocker. We trim Esper Origins for being too slow and shave a couple Escape Tunnel copies since we want maximum disruptive density against their grindy lifegain shell, while keeping the rest of our core engine intact.