Take the Hollow Phoenix deck that's been tearing up the online metagame: Hollow Phoenix, by KIREWIZ91 (3rd, Modern Challenge #11681656) Hollow Phoenix replaces the delve threats and Flamewake Phoenix of traditional Hollow One with a more Hollow One-esque card , Arclight Phoenix, to have a functional eight copies of its namesake creature
10 of these are monarch cards that don't stack up well just fyi Eowyn, Shieldmaiden, Weathered Wayfarer, Denethor, Stone Seer, Humble Defector, Archivist of Gondor, Faramir, Steward of Gondor, Verge Rangers, Aragorn, King of Gondor, Boromir, Gondor's Hope, Palace Jailer, Eomer, King of Rohan, Champions of Minas Tirith, Heirloom Blade, Vanquisher's Banner, Herald's Horn, Court of Ire, Fealty to the Realm, Oath of Eorl, Forth Eorlingas
7 Cleric - 546 Moving away from green, Clerics come in mainly white and black identities
Leader card: 8 types
Even if your opponents are keeping you from accumulating experience counters, returning creatures (especially those with lower CMC) to your hand is still quite useful