Gaze of the Gorgon

Oracle Text

((B/G) can be paid with either B or G.)

Regenerate target creature. At this turn's next end of combat, destroy all creatures that blocked or were blocked by it this turn.

Card Rulings

10/1/2005 At the next end of combat step in the turn, all creatures that had blocked the targeted creature at any point during the turn will be destroyed. This includes creatures that blocked it before Gaze of the Gorgon was cast. It doesn’t matter whether the targeted creature is still on the battlefield at that point.