16 cards where the text includes “mana value” and the set is “scg”

Accelerated Mutation (Scourge #109)
Ancient Ooze (Scourge #112)
Cabal Conditioning (Scourge #56)
Dispersal Shield (Scourge #33)
Dragon Breath (Scourge #86)
Dragon Fangs (Scourge #117)
Dragon Scales (Scourge #10)
Dragon Shadow (Scourge #65)
Dragon Wings (Scourge #34)
Fierce Empath (Scourge #119)
Krosan Drover (Scourge #122)
Kurgadon (Scourge #124)
Pyrostatic Pillar (Scourge #100)
Reward the Faithful (Scourge #22)
Rush of Knowledge (Scourge #49)
Torrent of Fire (Scourge #107)

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