Flashfreeze 
Instant
$0.10 #20286 0.15 20.1 years
Counter target red or green spell.
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Cards similar to Flashfreeze expected a card that isn't here?
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Change the Equation92%
$0.25↑#14150↑0.32↑3.4 years↓
"• Counter target red or green spell with mana value 6 or less."
Tidal Control80%
$1.04↑#229810.90↑30.2 years↑
"Pay 2 life or 
: Counter target red or green spell. Any player may activate this ability."
: Counter target red or green spell. Any player may activate this ability."
Controlled Instincts76%
$0.07↓#30429↓0.61↑17.6 years↓
"Enchant red or green creature"
Hydroblast74%
$3.85↑#12550↑0.33↑31.3 years↑
"• Counter target spell if it's red."
Blue Elemental Blast74%
$1.05↑#10860↑0.44↑33.1 years↑
"• Counter target red spell."
Mind Harness74%
$0.33↑#201600.60↑29.9 years↑
"Enchant red or green creature"
Encase in Ice74%
$0.07↓#27708↓0.00↓11.4 years↓
"Enchant red or green creature"
Deathgrip74%
$0.35↑#177970.1833.1 years↑
"
: Counter target green spell."
: Counter target green spell."
Cancel73%
$0.06↓#2057↑0.29↑19.9 years
"Counter target spell."
Tidebinder Mage73%
$0.20↑#214530.71↑13.1 years↓
"When this creature enters, tap target red or green creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control this creature."
Wilderness Hypnotist72%
$0.08↓#31697↓0.29↑18.1 years↓
"
: Target red or green creature gets -2/-0 until end of turn."
: Target red or green creature gets -2/-0 until end of turn."
High Seas72%
$0.21↑#24729↓0.81↑26.9 years↑
"Red creature spells and green creature spells cost more to cast."
more to cast."
Hunting Drake72%
$0.12↑#30471↓0.00↓25.6 years↑
"When this creature enters, put target red or green creature on top of its owner's library."
Douse71%
$0.32↑#206180.71↑27.9 years↑
": Counter target red spell."
: Counter target red spell."
Aether Gust70%
$0.23↑#206060.27↑7.2 years↓
"Choose target spell or permanent that's red or green. Its owner puts it on their choice of the top or bottom of their library."