They return a creature they control to its owners hand
Especially in Commander, Multanis power and toughness can grow to obscene heights, and it features prebuilt imperviousness thanks to holding the shroud keyword ability, which protects it from all targeted spells or abilities (even if youre the owner of Multani)
effects that last until the end of the turn now end
You can push for more Phyrexian interaction here, but the artifact route is better supported and more generically powerful
this suffix was only introduced in the Jungle and Fossil sets

Magic: The Gathering | Marvel's Spider-Man Key Dates Scheduled Events Prerelease : September 1925 Unlimited scheduling within the one-week Prerelease window Commander Box League : September 1925 Unlimited scheduling within the one-week Prerelease window Commander promo: Spider-Ham, Peter Porker Two-Headed Giant Commander Night : September 26November 13 One event monthly Commander promo: Spider-Ham, Peter Porker Commander Party : October 39 and October 2430 One event per period, two events per season Commander promo: Spider-Ham, Peter Porker Magic Presents: A Villainous Halloween: October 31November 2 Unlimited scheduling during the window Must have schedule by August 15 to receive event materials Spider-Man: The Final Battle : November 19 One event during the scheduling window Prize: Spider-Man alternate-art cover comic book Season-Long Events Magic Presents: Friendly Neighborhood Draft: September 26November 13 Unlimited scheduling Promo: Ultimate Green Goblin Magic Academy: Learn to Play and Deck Building: September 26November 13 Unlimited scheduling
