The dev team just deployed a B-Patch for Patch 14.17 to fix some bugs:

• Pyro Trait stats no longer persist incorrectly on a unit
• Ryze with Static Shiv will no longer affect allies during his Ability cast
• Temporary Items from select occurrences no longer become permanent under certain conditions
• 3-star Xerath’s secret Charm now works correctly
• Briar’s new Tocker’s Trials effect is no longer active in other modes
• Arcana’s Emblem damage amp bonuses now function as expected and intended
• Tocker’s Trials – Rerolling the same Charm in a round no longer makes it unbuyable and deduct gold per click
• CC immunity effects no longer display Debug text

Full patch notes https//riot.com/3Ayj0R5