Like the case with Mind Control before it, stocks of Wiseman's Chalice have literally sold out over night. Why? Blame Exceeds.
If you control no monsters, Select 1 monster in your opponent's Graveyard. Special Summon it. During the End Phase of this turn, give control of that Special Summoned monster to your opponent. The monster cannot be Tributed, or used as a Synchro Material Monster, while it is face-up on the field.
Wiseman's Chalice (Normal Spell)
Mind Control used to be a terrible card a few years back because there weren't many ways of capitalizing on the stolen monster. Synchro Monsters changed that, which is why the card is now limited. The same logic can be used on Wiseman's Chalice, except you'd use it to bring out an Exceed Monster instead of a Synchro.
Better start grabbing as many copies as you can now, before prices skyrocket.
Remember players, the game ends with you.