Ancient Silver Dragon April, Reporter of the Weird Arm-Mounted Anchor Azra Oddsmaker Battle Angels of Tyr Bebop, Skull & Crossbones Book Devourer Captain Howler, Sea Scourge Cold-Eyed Selkie Curie, Emergent Intelligence Damocles Base, Sword of Kang Diviner Spirit Fear of Failed Tests Foot Chopper Glenn, the Voice of Calm Glint-Eye Nephilim Hunter's Insight Hunter's Prowess Impaler Shrike Iymrith, Desert Doom Jolrael, Voice of Zhalfir Kain, Traitorous Dragoon Korvold, Gleeful Glutton Mask of Memory Mask of the Schemer Merfolk Windrobber Mighty Servant of Leuk-o Nael, Avizoa Aeronaut Neheb, Dreadhorde Champion Nimble Brigand Ogre-Head Helm Peema Trailblazer Professor Hulk Psychic Frog Robe of the Archmagi Sauron, the Dark Lord Sergeant John Benton Shadow, Mysterious Assassin Shoreline Looter Starwinder Sturmgeist Subterfuge Summon: Primal Odin Surrakar Spellblade The Gitrog, Ravenous Ride The Pride of Hull Clade Trash the Town Xyris, the Writhing Storm Zombie Cheese Magician

Quick note: Older cards with the choose one or more text have been updated to include bulleted lists in their oracle text, making it easier to identify when it's modal
If you just want extra mileage out of your creatures (or to abuse cards like Whitemane Lion to their fullest, God-Eternal Oketra has you covered
The best instant in MTG is Force of Will
I see now why Pacifism is not in this set and that makes sense