17 cards where the name is exactly “ponder”

Ponder (Outlaws of Thunder Junction Commander #105)
Ponder (Secret Lair Showdown #19)
Ponder (Doctor Who #808)
Ponder (Doctor Who #217)
Ponder (Eternal Weekend #2)
Ponder (Secret Lair 30th Anniversary Countdown Kit #2007)
Ponder (New Capenna Commander #229)
Ponder (Commander 2021 #125)
Ponder (Time Spiral Remastered #315)
Ponder (Secret Lair Drop #245)
Ponder (The List #C21-125)
Ponder (Commander 2018 #96)
Ponder (Magic Online Promos #35118)
Ponder (Magic 2012 #73)
Ponder (Magic 2010 #68)
Ponder (Magic Player Rewards 2008 #6)
Ponder (Lorwyn #79)

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