Baloo, Von Bruinwald XIII Put your opponents into a spin Pilot of the Seaduck and lead character of animated Disney seriesTalespin Baloo Von Bruinwald XIII makes his debut in Into the Inklands with an amber card
Last week we looked at Plains, and then before that, Swamps
Alchemist's Gambit All in Good Time Alrund's Epiphany Avatar Kuruk Capture of Jingzhou Chance for Glory Emrakul, the Aeons Torn Expropriate Final Fortune Frenetic Efreet Avatar Gonti's Aether Heart Ichormoon Gauntlet Kang the Conqueror Last Chance Lighthouse Chronologist Lost Isle Calling Magistrate's Scepter Magosi, the Waterveil Medomai the Ageless Mu Yanling Nexus of Fate Notorious Throng Otaria Part the Waterveil Perch Protection Phone a Friend Plea for Power Ral Zarek Regenerations Restored Rise of the Eldrazi Sage of Hours Savor the Moment Search the City Second Chance Seedtime Stitch in Time Teferi, Master of Time Teferi, Timebender Temporal Extortion Temporal Manipulation Temporal Mastery Temporal Trespass Time Bends to My Will Time Sidewalk (playtest) Time Sieve Time Vault Time Walk Timestream Navigator Twice Upon a Time Ugin's Nexus Ultimecia, Omnipotent Wanderwine Prophets Warrior's Oath Wormfang Manta

Getting stuff to leave your graveyard isnt a huge ask in the format either, as the entire Collect Evidence mechanic is all about doing that
Those are arguably the most powerful mill spells, since in the right archetype they immediately lead to a combo win