Early in the game, when aggressive Pirates need to swing through and slower Pirates want more time to set up, Fatal Push from Aether Revolt continues to shine
Stomp Off Discard the top card from your opponent's deck

Mono-Black Elves | Commander | Stephen Johnson Commander (2) 1 Miara, Thorn of the Glade 1 Nadier, Agent of the Duskenel Creatures (30) 1 Ayara, First of Locthwain 1 Briarblade Adept 1 Crypt Ghast 1 Deadbridge Shaman 1 Deathknell Berserker 1 Duskwielder 1 Elderfang Disciple 1 Elderfang Ritualist 1 Elvish Doomsayer 1 Elvish Dreadlord 1 Exquisite Huntmaster 1 Eyeblight Cullers 1 Eyeblight Assassin 1 Gilt-Leaf Winnower 1 Gray Merchant of Asphodel 1 Hunter of Eyeblights 1 Koma's Faithful 1 Lys Alana Scarblade 1 Massacre Wurm 1 Moonglove Winnower 1 Nadier's Nightblade 1 Nightshade Harvester 1 Plague Witch 1 Ruthless Winnower 1 Scarblade Elite 1 Scarred Vinebreeder 1 Skemfar Avenger 1 Skemfar Shadowsage 1 Thornmantle Striker 1 Thornbow Archer Planeswalkers (1) 1 Liliana of the Dark Realms Instants (8) 1 Cabal Ritual 1 Dark Ritual 1 Doom Blade 1 Go for the Throat 1 Grasp of Darkness 1 Hero's Downfall 1 Vampiric Tutor 1 Victim of Night Sorceries (9) 1 Eyeblight's Ending 1 Bubbling Muck 1 Demonic Tutor 1 Eyeblight Massacre 1 In Garruk's Wake 1 Patriarch's Bidding 1 Reanimate 1 Return Upon the Tide 1 Toxic Deluge Enchantments (3) 1 Black Market 1 Phyrexian Arena 1 Prowess of the Fair I suspect this list could use more recursion and graveyard interaction

While early buzz referred to the game itself as "M Universe," the official McDonald's announcement clarifies that "M Universe" is the overarching lore and world these characters inhabit, while the physical TCG promotion is called Iconic CARDS
Adarkar Wastes is the same power level as Island, so it's safe to say that the Sapphire would have to cost what Talisman of Progress does: 2