At the beginning of your end step, if a face-down creature entered the battlefield under your control this turn, put a +1/+1 counter on this creature. : Add .
原文Tunnel Tipster’s first ability will trigger as long as a face-down creature entered the battlefield under your control this turn, even if that creature has turned face up or left the battlefield since. A creature that enters the battlefield face up and turns face down later in the turn won’t cause Tunnel Tipster’s first ability to trigger.