There are about a million 2/1s for two mana with some sort of upside that are playable, not just in Standard but in Modern as well, which means Naban, Dean of Iterationwhile restrictive in another way (only working with Wizards)is much easier to build around than Panharmonicon
Forum Necroscribe Graveshifter Grim Reaper, Lethal Legionnaire Grub, Storied Matriarch Hazel's Nocturne Hex of Undeath Illicit Masquerade It Doesn't Add Up Live or Die Macabre Reconstruction Macabre Waltz Moseo, Vein's New Dean Mourner's Surprise Nullpriest of Oblivion Prison Break Pull from the Grave Queen's Bay Paladin Ral Zarek, Guest Lecturer Rat King, Verminister Sanguine Indulgence Scavenger's Talent Scrounge for Eternity Sidisi, Regent of the Mire Soulcoil Viper The Soul Stone The Terminus of Return Unbury Unliving Legionnaire Valgavoth's Faithful Vampire Soulcaller Viggo, Enforcer of Ig's Crossing Visage of Dread Wail of War Xu-Ifit, Osteoharmonist Zombify Zuko's Conviction
Each Commander deck includes a legendary "face" Commander as well as an alternate legend, plus a Background to use as Commanders
Rhinos has recently gotten the addition of Tishanas Tidebinder which is an incredibly versatile card