With only three copies you won't always be able to get Pluto down on turn one, so try to play him turn before you need him

." A Good Thing (playtest) Abstruse Appropriation Abyssal Harvester Abzan Charm Admiral Brass, Unsinkable Adorned Crocodile Aesthetic Consultation Aether Snap Afterlife from the Loam Agent of Erebos Aggressive Negotiations Agonizing Remorse Aim for the Head Alchemist's Assistant All Hallow's Eve Alms of the Vein Altar of Bhaal Altar of Bhaal Altar Ibn-La'Ahad Aminatou, the Fateshifter Anafenza, the Foremost Anathemancer Ancient Vendetta Anguished Unmaking Anikthea, Hand of Erebos Animate Graveyard Anoint with Affliction Aphemia, the Cacophony Appetite for Brains Araumi of the Dead Tide Archenemy's Charm Archfiend of Sorrows Archfiend of Spite Archfiend's Vessel Ardyn, the Usurper Army of the Damned Arvinox, the Mind Flail Ashen Rider Ashes to Ashes Ashiok, Dream Render Ashiok, Nightmare Muse Ashiok, Nightmare Weaver Ashiok, Wicked Manipulator Ashnod's Intervention Ashnod, Flesh Mechanist Asmodeus the Archfiend Assemble from Parts Astarion's Thirst Asylum Visitor Athreos, Shroud-Veiled Author of Shadows Ayara, Furnace Queen Ayli, Eternal Pilgrim Azula, Cunning Usurper Bag of Devouring Balduvian Dead Baleful Mastery Balthor the Defiled Bane Alley Broker Bank Job Banshee of the Dread Choir Baron Helmut Zemo Barrow Ghoul Beckon Apparition Beseech the Mirror Big Game Hunter Bilbo, Birthday Celebrant Bismuth Mindrender Biting Rain Biting-Palm Ninja Bitter Ordeal

After that Khans of Tarkir and Fate Reforged printed the bulk of the delve cards
That last one is a particularly odd choice given its only shown up on a single card after its initial introduction in 2008's Shadowmoor block, but Heggen says it was explicitly used as a visual joke here: the symbol looks like the quarter-circle joystick motion required to do Ryus Hadoken ability in the video games
Expect to see more of these stunts cropping up in the future as Tales of Middle-earth draws closer to release on June 23