Any player may respond to Seraph of New Phyrexia's triggered ability, but once that ability starts to resolve, no player may take any actions between you deciding to sacrifice another creature or artifact and Seraph of New Phyrexia getting +2/+1
The original version comes from the Brilliant Stars expansion, which actually released another promotional version of the same card
Fabled Passage is a strictly better Evolving Wilds/Terramorphic Expanse, and I would encourage people to consider running some amount of fetch lands, even slower/cheaper ones, as they can be recurred fairly easily, help to fix mana, and can trigger certain abilities for sacrificing permanents or permanents leaving play

$0.79 Fractal Token Strixhaven: School of Mages $16.99 Muldrotha, the Gravetide (0057 - Orphan, Cocoon fal'Cie) Final Fantasy Through the Ages $34.99 Jodah, the Unifier (0017 - Warrior of Light) Final Fantasy Through the Ages $19.99 Venser, Shaper Savant (0006 - Master Xande) Final Fantasy Through the Ages $24.99 Ugin's Labyrinth Modern Horizons 3 $599.99 Rhystic Study (0031 - Stay with Me) Final Fantasy Through the Ages $11.99 Bruse Tarl, Boorish Herder (0050 - Hugo Kupka) Final Fantasy Through the Ages $279.99 Atraxa, Grand Unifier (0049 - Sephiroth, the Savior) Final Fantasy Through the Ages $29.99 Sram, Senior Edificer (0003 - Firion, Swordmaster) Final Fantasy Through the Ages $99.99 Nyxbloom Ancient (0016 - The Cloudsea Djinn) Final Fantasy Through the Ages $27.99 Primeval Titan (0048 - Astral Titan) Final Fantasy Through the Ages $11.99 Sickening Shoal Betrayers of Kamigawa 0 results found

I have recently tested playing 1 Power Spray, as a way to punish one key PokePower per game, but I don't feel like it is necessary
Weakness: None Resistance: None Retreat: 1 142