The following is a mess of high cmc cards that I think are sweet to cast and it's most certainly not a complete list: Nezahal, Primal Tide, Jin-Gitaxias, Core Augur, Myojin of Seeing Winds, Kozilek, Butcher of Truth, Kozilek, the Great Distortion, Cruel Ultimatum, Enter the Infinite, Baleful Force, Maelstrom Wandeer, Time Stretch Card Draw: Chancellor of the Annex, Void Winnower, Iona, Shield of Emeria, Decree of Silence Denial: Archetype of Endurance, Avacyn, Angel of Hope, Sandwurm Convergence Protection: Oblivion Sower, Vorinclex, Voice of Hunger, Myojin of Life's Web, Zendikar Resurgent, Omniscience Ramp: Angel of the Dire Hour, Luminate Primordial, Ashen Rider, Magmatic Force, Myojin of Cleansing Fire, Myojin of Night's Reach, Terastodon, Tidespout Tyrant, Zacama, Primal Calamity, Dread Cacodemon, Myojin of Infinite Rage, Ulamog, the Ceaseless Hunger, Pathrazer of Ulamog, Ulamog, the Infinite Gyre, Nicol Bolas, God-Pharaoh, Nicol Bolas, Planeswalker, Ugin, the Spirit Dragon, Akroma's Vengeance, Violent Ultimatum, Decree of Pain, In Garruk's Wake, Plague Wind, Curse of the Cabal Removal: Sheoldred, Whispering One, Artisan of Kozilek, Praetor's Counsel Recursion: Diluvian Primordial, Sepulchral Primordial, It That Betrays, Emrakul, the Promised End, Blatant Thievery, Worst Fears, Expropriate, Rise of the Dark Realms, Insurrection Theft: Iname as One, Conflux Tutors: Blightsteel Colossus, Storm Herd Beatdown: Or if you prefer seeing a list with all the cmcs and prices: As you can see, we've got a ton of powerful high cmc spells to cheat out
For a single green mana, a creature becomes a 6/4 until end of turn
While its restriction to only collecting low-power creatures can be awkward, you'd typically include Kiki-Jiki, Mirror Breaker alongside Imperial Recruiter, to trigger Recruiter's ability many more times
Four mana for a 5/5 flying is okay, but a bit slow, and crew 3 isn't great for a 5/5 just two power increase
