[CLIENT] Soraka shows critical strike of 358 damage with no AD or crit items in postgame stats

Played a game of ARAM with Soraka. Built AP items and some MR but no Zeke's. Nobody else on my team had Zeke's either, so I'm confsed as to how I could have gotten a critical attack. It's possible that the attack only showed up in postgame data and not in game, but Jinx was the only champion in that game to have built any crit items at all. Running windows 8.1 on patch 5.19.