Just play Spectacular Pileup, which gets around Heroic Intervention, and then cycle it if you draw it late and you dont want to cast it
Like most Magic: The Gathering cards, the value of Guide of Souls depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Modern Horizons 3)
some were unblockable, some had deathtouch, some had Curiosity effects built in, but there was no real cohesion
Unfinity, meanwhile, shows glimmers of brilliance
Every non-Core Set since Arabian Nights, released in December 1993, has an expansion symbol, though the changing of the color for rarity didnt start until Exodus, released in June 1998