Joe, Hasty Instigator

When Joe, hasty Instigator enters the battlefield, declare target player a threat. Whenever a player attacks that target player, you and the attacking
player create a clue token, and you reveal a
nonland card from your hand you haven't already revealed for running your mouth.
Argue about the stack — {x}{x}{u}{b},{t}, where X
is the number of stack counters you have:
Rearrange the stack. You get a stack counter.