Siphon Insight
Instant{U}{B}
Look at the top two cards of target opponent's library. Exile one of them face down and put the other on the bottom of that library. You may play the exiled card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. Flashback {1}{U}{B}
Colour identity Dimir · Flashback
In short
Siphon Insight has 7 listed printings; the most valuable is the Prerelease printing from PMID at US$2.26 on TCGplayer's market price. Prices below are the cheapest in-stock listing in the United States.
Every Siphon Insight printing
Prerelease
Siphon Insight
PMID · 241s
Price not tracked
Inverted
Siphon Insight
DBL · 241
Price not tracked
Extended Art
Siphon Insight
MID · 375
Price not tracked
Promo Pack
Siphon Insight
PMID · 241p
Price not tracked
Siphon Insight
MID · 241
Price not tracked
Siphon Insight
OTC · 242
Price not tracked
Borderless
Siphon Insight
OTP · 54
Price not tracked