Promised Consort Radahn is a two-phase nightmare combining gravity and holy attacks. He punishes nearly every playstyle. Frost is the strongest element here, and collecting maximum Scadutree Fragments before attempting is essential.
Recommended Builds
#1: Frost Mage
Frost is ideal — the absorption debuff is critical against his massive HP pool.
Why it works: Frost works on both phases, the 20% absorption debuff stacks with damage buffs, and ranged frost sorceries let you avoid Phase 2's devastating melee combos.
#2: Moonveil Magic
Versatile enough for both phases with neutral magic damage and punish speed.
Why it works: Transient Moonlight's speed matches the tempo of this fight. The stagger buildup can interrupt some of Radahn's combo startups in both phases.
#3: Giant Crusher
Physical damage with stagger potential. Jump attacks interrupt his most dangerous combos.
Why it works: Radahn takes full physical damage and his poise can be broken with sustained heavy attacks. Jump R2 during recovery windows builds toward a critical that resets his combo.