5 Hide Away 163/204, Sapphire Hide Away is a fairly self-explanatory card, and it doesn't take too much thinking to realize how useful it can be
However, if you do choose a target, and that target is illegal at the time Witch's Mark tries to resolve, the spell won't resolve and none of its effects will happen
810 interaction pieces you still need answers
But it can also just be goofy fun
Card grading services are professional at it, and while how much it costs to get your card graded is a big discussion, for 100 of the most expensive cards that are worth hundreds or thousands of dollars, it makes sense and builds confidence and trust in your buyer
However, in a competitive setting, there are better cards available that offer more immediate impact or synergy with existing strategies, such as Teferi, Time Raveler or Uro, Titan of Nature's Wrath