Hey Bradjr thank you for your kind words and question.

Shurelya's Battlesong is indeed a solid choice for Thresh in most games. It provides movement speed and helps with engaging/desangaging in fights, which can be super valuable. However, Locket of the Iron Solari is also a great option, especially if you're up against enemies with burst or heavy magic damage. So, it really depends on the specific circumstances and the enemy team's composition. Take into account their threats and choose the item that best suits the situation.

Gl in your games!