Bog Gnarr 
Creature — Beast
$0.13 #32081 0.00 25.4 years
Whenever a player casts a black spell, this creature gets +2/+2 until end of turn.
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Cards similar to Bog Gnarr expected a card that isn't here?
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Demon's Horn90%
$0.21↑#6565↑0.12↑22.7 years↓
"Whenever a player casts a black spell, you may gain 1 life."
Throne of Bone90%
$0.16↑#24594↑0.0633.2 years↑
"Whenever a player casts a black spell, you may pay 
. If you do, you gain 1 life."
. If you do, you gain 1 life."
Sol'kanar the Swamp King90%
$0.17↑#20022↑0.12↑32.4 years↑
"Whenever a player casts a black spell, you gain 1 life."
Radiant Essence89%
$0.23↑#322560.0030.0 years↑
"This creature gets +1/+2 as long as an opponent controls a black permanent."
Knight of Grace88%
$0.17↑#17459↑0.008.5 years↓
"This creature gets +1/+0 as long as any player controls a black permanent."
Purraj of Urborg88%
$0.97↑#289580.0030.0 years↑
"Whenever a player casts a black spell, you may pay 
. If you do, put a +1/+1 counter on Purraj."
. If you do, put a +1/+1 counter on Purraj."
Smolder Initiate87%
$0.18↑#282590.20↑18.5 years↓
"Whenever a player casts a black spell, you may pay . If you do, target player loses 1 life."
. If you do, target player loses 1 life."
Onyx Talisman86%
$0.36↑#257320.29↑31.4 years↑
"Whenever a player casts a black spell, you may pay 
. If you do, untap target permanent."
. If you do, untap target permanent."
Ashenmoor Cohort84%
$0.18↑#316840.0018.5 years↓
"This creature gets +1/+1 as long as you control another black creature."
Raven's Run Dragoon80%
$0.10↓#318280.0018.5 years↓
"This creature can't be blocked by black creatures."
Spectral Force78%
$0.21↑#281560.0020.0 years↓
"Whenever this creature attacks, if defending player controls no black permanents, it doesn't untap during your next untap step."
Spectral Bears77%
$0.37↑#19924↑0.0031.1 years↑
"Whenever this creature attacks, if defending player controls no black nontoken permanents, it doesn't untap during your next untap step."
Emberstrike Duo76%
$0.09↓#303640.0018.5 years↓
"Whenever you cast a black spell, this creature gets +1/+1 until end of turn."
Serra Inquisitors76%
$0.18↑#316650.0031.1 years↑
"Whenever this creature blocks or becomes blocked by one or more black creatures, this creature gets +2/+0 until end of turn."
Vine Mare76%
$0.12↓#23272↑0.008.3 years↓
"This creature can't be blocked by black creatures."
Death Speakers76%
$0.16↑#298020.0731.1 years↑
"Protection from black"
Valeron Outlander76%
$0.05↓#313270.0017.7 years↓
"Protection from black"
Scalebane's Elite76%
$0.16↑#322540.0029.7 years↑
"Protection from black"
Llanowar Knight76%
$0.16↑#303310.0726.0 years
"Protection from black"
Soot Imp74%
$1.26↑#13765↑0.50↑18.2 years↓
"Whenever a player casts a nonblack spell, that player loses 1 life."