20 cards where the cards aren’t reprints and the card has the keyword “Encore”

Impulsive Pilferer (Commander Legends #185)
Phyrexian Triniform (Commander Legends #331)
Amphin Mutineer (Commander Legends #55)
Rakshasa Debaser (Commander Legends #146)
Mist Dancer (The Lost Caverns of Ixalan Commander #76)
Angel of Indemnity (Outlaws of Thunder Junction Commander #9)
Sliver Gravemother (Commander Masters #707)
Fathom Fleet Swordjack (Commander Legends #177)
Coastline Marauders (Commander Legends #168)
Kangee's Lieutenant (Commander Legends #26)
Soul of Eternity (Commander Legends #50)
Elvish Dreadlord (Commander Legends #121)
Broodmate Tyrant (Modern Horizons 3 Commander #71)
Kitesail Skirmisher (Commander Legends #77)
Exquisite Huntmaster (Commander Legends #122)
Spellbinding Soprano (New Capenna Commander #53)
Trove Tracker (Commander Legends #104)
Briarblade Adept (Commander Legends #111)
Kinsbaile Courier (Commander Legends #29)
Fin-Clade Fugitives (Commander Legends #227)

The message was clear to Sorin—time to search for something else.