
This artifact enters tapped.
{1}, {T}, Sacrifice this artifact: Target opponent puts the cards from their hand on top of their library. Search that player's library for that many cards. That player puts those cards into their hand, then shuffles.
Jester's Mask has 2 printings, first in Ice Age (1995). EDHREC ranks it #20,085 among Commander cards. It appears most in The Madcap Jester decks (148 on EDHREC).
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.