A swing and a miss

Adam is playing against Nick in a sealed PPTQ. Adam controls Munda, Ambush Leader, and has just put a Kor Ally token into play via Retreat to Emeria‘s landfall trigger. Adam says, “Munda trigger,” then accidentally grabs the top 5 cards of his library and starts to look at them when Nick calls for a judge.

What do you do?

Judges, feel free to discuss this scenario on Judge Apps!

Answer coming soon!