Often when talking about combos, people mention the ability to cheat
If Maro's toughness goes to 0 during the announcement or resolution of a spell or ability and then goes back up above 0 before the end of that announcement or resolution, it won't be put into your graveyard when state-based actions are checked.
However, Sultai Arisen is unique as it's less about reanimating creatures from your graveyard and instead more about simply having cards leave the graveyard

Anowon, the Ruin Thief Artist's Talent Belligerent Guest Bottomless Pool // Locker Room Bottomless Pool // Locker Room Contaminant Grafter Crossway Troublemakers Elegy Acolyte Frostcliff Siege Garruk's Uprising Glitch Interpreter Gnarlback Rhino Grazilaxx, Illithid Scholar Haliya, Ascendant Cadet Heroes in a Half Shell Invasion Tactics Jace, Cunning Castaway Kaito, Dancing Shadow Kastral, the Windcrested Keeper of Fables Killian's Confidence Loki, the Deceiver Massacre Girl, Known Killer Mu Yanling, Wind Rider Nelly Borca, Impulsive Accuser Ongoing Investigation Soul of the Harvest Spider-Man 2099, Miguel O'Hara Starscream, Power Hungry Striding Shotcaller Taii Wakeen, Perfect Shot The Destined Thief The Fantastic Four The Golden City of Orazca The Odd Acorn Gang The Raven's Warning Thopter Spy Network Tidus, Yuna's Guardian Vulture, Feathered Fiend Yarus, Roar of the Old Gods
Others need only one pull, play it if it fits and keep it otherwise