expand_less Tier 0: Nothing (no reviewed class is this powerful, but they can be with certain capstones like the spellvampire shifter's Forever Evolving)
Tier 0.5: Vizier (Recordkeeper w/ Veilweaving sphere)
Tier 1: Psion (w/ Psychic Reformation), Wilder (w/ Psychic Reformation)
Tier 1.5: Psion, Taskshaper, Sphereshaper
Tier 2: Fisherking, Harbinger, Mystic, Rajah (Batal), Vizier, Wilder (w/ Student's Surge, Human FCB), Spellweaver, Transcendent (by Studio M-)
Tier 2.5: Aspect, Channeler, Daevic (w/ Knowledge Passion), Daevic Retold, Eclipse (w/ occultation), Fey Adept, Hedgewitch (w/ flex talents, most archetypes), Incanter, Necros, Prodigy (w/ custom techniques), Occultist (by Radiance House), Rajah, Sage (w/ ki clone, custom techniques), Shadow Weaver, Spiritualist (by Drop Dead Studios), Stalker, Thug, Troubador, Voyager, Warder, Wilder, Zealot
Tier 3: Armiger, Armorist, Conscript, Cryptic, Daevic, Dilettante, Dragoon, Dread (w/o fear immune enemies), Eclipse, Enlightened Scholar (w/ spellcasting), Guru, Hedgewitch, Helmsman, Highlord, Huay, Incanter, Medic, Nexus, Prodigy, Promethean, Psychic Warrior, Reaper, Sage, Scholar, Stormbound, Soul Weaver, Tactician, Thaumaturge, Vitalist, Volur, Warden, Warlord, Wraith
Tier 3.5: Aegis, Blacksmith, Bravo, Courser, Dissident, Elementalist, Eliciter, Envoy, Kheshig, Mageknight, Mountebank, Professional, Radiant, Sage, Scholar, Sentinel, Shifter (by Drop Dead Studios), Soulforge, Soulknife (Gifted Blade), Striker, Symbiat, Technician, Thaumaturge (Savant), Theorist, Zodiac (Lunar)
Tier 4: Commander, Demon Hunter, Echo, Marksman, Mastermind, Voltaic, War Dancer, Zodiac (Solar)
Tier 4.5: Enlightened Agent, Enlightened Scholar (w/o spellcasting), Crux, Kineticist, Kusa, Soulknife, Successor,Successor Crux
Tier 5: Paramour, Vauntguard
Tier 5.5: Dread (w/ fear immune enemies)
Tier 6: 
Others: