Duplicity {3}{U}{U}
Enchantment
When this enchantment enters, exile the top five cards of your library face down.
At the beginning of your upkeep, you may exile all cards from your hand face down. If you do, put all other cards you own exiled with this enchantment into your hand.
At the beginning of your end step, discard a card.
When you lose control of this enchantment, put all cards exiled with this enchantment into their owner's graveyard.
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Moonring Mirror 98%
$0.46#23409
"At the beginning of your upkeep, you may exile all cards from your hand face down. If you do, put all other cards you own exiled with this artifact into your hand."
+1 more matching line
Colfenor's Plans 96%
$0.37#18876
"When this enchantment enters, exile the top seven cards of your library face down."
+2 more matching lines
Search the City 90%
$0.13#30283
"When this enchantment enters, exile the top five cards of your library."
+1 more matching line
Narset, Jeskai Waymaster 85%
$0.23#11990
"At the beginning of your end step, you may discard your hand. If you do, draw cards equal to the number of spells you've cast this turn."
Shadow of the Goblin 81%
$0.95#4668
"At the beginning of your first main phase, discard a card. If you do, draw a card."