Pantheon

Arena changes

• W: AP ratio changed to 2% per 100 AP.
• W: Cooldown changed to 15 to 11 seconds.
• R: AP ratio changed to 150% AP.
• R: Cooldown changed to 60 to 40 3 seconds.²

• Reverberation, Mystic Punch, and Ethereal Weapon are the core augments for an on-hit Pantheon build focused on repeated stuns. Outlaw’s Grit, Clown College, Hullbreaker, Black Cleaver, Titanic Hydra, Blade of the Ruined King, and Mercury’s Treads are additional options.³
• Pantheon can build pure damage to make use of his built-in penetration or true damage.⁴
• Reverberation, Moonflair, and Mystic Punch can support a repeated-W build; Master of Duality is another augment option for stacking Ability Power through repeated W casts.⁵⁶
• A high-damage Pantheon W build can use Clown College, Thread the Needle III, Aim for the Head II, and Glass Cannon with Kinkou, Duskblade, Blade of the Ruined King, Lord Dominik's Regards, Infinity Edge, and Reworked Voltaic.⁷

• Pantheon’s high base damage, crowd control, and E can make trades free, including in early and mid rounds when his stats are lower.⁸
• With Ethereal Weapon, Pantheon’s empowered W gives four passive stacks from its three attacks because the W stun also counts as an attack.⁹
• Pantheon’s E deals rapid hits that can stack Black Cleaver quickly.¹⁰
• With Ethereal Weapon, Mystic Punch, and Reverberation, Pantheon can spam W while applying six on-hit effects each time.¹¹
• Pantheon’s repeated-W build can be interrupted by crowd control, and he can be focused by multiple enemies before he can keep casting.¹²

• In the eight-teams-of-two format, Pantheon’s E hit every 0.125 seconds, and a Black Cleaver change was expected to affect it.¹³ Earlier Arena format

Earlier formats

• Since patch 25.07, It’s Killing Time triggers just before Pantheon’s spear lands.¹⁴ 8x2 duos
• Pantheon’s Shield Vault (W) bug that caused it to deal less damage than intended was fixed in patch 14.14.¹⁵ 8x2 duos
• Pantheon’s empowered W triple attack worked with Puppeteer; a final attack reset from Titanic Hydra could trigger it immediately.¹⁶ 8x2 duos
• Mystic Punch had broken interactions with Pantheon’s W.¹⁷ 8x2 duos