Touch of Darkness 
Instant
$10.20 #17981 0.29 32.3 years
One or more target creatures become black until end of turn.
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Dwarven Song94%
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Sea Kings' Blessing94%
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"One or more target creatures become blue until end of turn."
Heaven's Gate93%
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"One or more target creatures become white until end of turn."
Sylvan Paradise92%
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"One or more target creatures become green until end of turn."
Sway of Illusion88%
$0.56↓#187440.3125.9 years↓
"Any number of target creatures become the color of your choice until end of turn."
Quickchange84%
$0.15↓#22721↓0.09↓20.9 years↓
"Target creature becomes the color or colors of your choice until end of turn."
Singe82%
$0.13↓#30460↓0.2525.6 years↓
"this card deals 1 damage to target creature. That creature becomes black until end of turn."
Tidal Visionary82%
$0.15↓#202660.2925.9 years↓
"
: Target creature becomes the color of your choice until end of turn."
: Target creature becomes the color of your choice until end of turn."
Sinister Strength82%
$0.17↓#26764↓0.00↓25.6 years↓
"Enchanted creature gets +3/+1 and is black."
Serpentine Ambush80%
$0.12↓#183850.294.8 years↓
"Until end of turn, target creature becomes a blue Serpent with base power and toughness 5/5."
Aphotic Wisps80%
$0.28↓#8578↑0.3818.3 years↓
"Target creature becomes black and gains fear until end of turn."
Crimson Wisps79%
$0.89↓#2464↑0.12↓18.3 years↓
"Target creature becomes red and gains haste until end of turn."
Incite78%
$0.07↓#27461↓0.44↑16.1 years↓
"Target creature becomes red until end of turn and attacks this turn if able."
Viridescent Wisps78%
$0.25↓#13069↑0.45↑18.3 years↓
"Target creature becomes green and gets +1/+0 until end of turn."
Ersatz Gnomes78%
$0.23↓#27908↓0.2129.9 years↓
": Target spell becomes colorless."
: Target spell becomes colorless."
Niveous Wisps77%
$0.36↓#12659↑0.14↓18.3 years↓
"Target creature becomes white until end of turn. Tap that creature."
Moonlace76%
$0.45↓#177250.2819.9 years↓
"Target spell or permanent becomes colorless."
Prismwake Merrow76%
$0.07↓#30300↓0.2418.3 years↓
"When this creature enters, target permanent becomes the color or colors of your choice until end of turn."
Deathlace76%
$0.39↓#29965↓0.3133.1 years
"Target spell or permanent becomes black."
Scale Up76%
$0.40↓#7070↑0.11↓7.2 years↓
"Until end of turn, target creature you control becomes a green Wurm with base power and toughness 6/4."