Urge to Feed 
Instant
$0.19 #11667 0.06 16.6 years
Target creature gets -3/-3 until end of turn. You may tap any number of untapped Vampire creatures you control. If you do, put a +1/+1 counter on each of those Vampires.
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Olivia's Wrath84%
$0.40↑#2836↑0.29↑4.8 years↓
"Each non-Vampire creature gets -X/-X until end of turn, where X is the number of Vampires you control."
Sanguine Glorifier82%
$0.08↓#26541↓0.22↑8.6 years↓
"When this creature enters, put a +1/+1 counter on another target Vampire you control."
Stromkirk Mentor82%
$0.05↓#25484↓0.0010.4 years↓
"When this creature enters, put a +1/+1 counter on another target Vampire you control."
Chosen of Markov // Markov's Servant80%
$0.10↓#23394↓0.38↑14.6 years↓
"
, Tap an untapped Vampire you control: Transform this creature."
, Tap an untapped Vampire you control: Transform this creature."
Gift of Fangs80%
$0.21↑#14629↓0.60↑4.8 years↓
"Enchanted creature gets +2/+2 as long as it's a Vampire. Otherwise, it gets -2/-2."
Anointed Deacon78%
$0.17↓#24958↓0.008.9 years↓
"At the beginning of combat on your turn, you may have target Vampire get +2/+0 until end of turn."
Blood Tribute77%
$4.77↑#6080↑0.76↑16.9 years
"Kicker—Tap an untapped Vampire you control."
New Blood74%
$0.34↑#4418↑0.42↑9.0 years↓
"As an additional cost to cast this spell, tap an untapped Vampire you control."
Markov Retribution72%
$0.12↓#21354↓0.044.8 years↓
"• Target Vampire you control deals damage equal to its power to another target creature."
Rakish Heir72%
$0.24↑#6480↑0.16↑14.9 years↓
"Whenever a Vampire you control deals combat damage to a player, put a +1/+1 counter on it."
Duskborne Skymarcher72%
$0.27↑#18779↓0.008.9 years↓
"
, : Target attacking Vampire gets +1/+1 until end of turn."
, : Target attacking Vampire gets +1/+1 until end of turn."
Deathless Ancient71%
$0.17↓#26311↓0.008.9 years↓
"Tap three untapped Vampires you control: Return this card from your graveyard to your hand."
Stromkirk Bloodthief70%
$0.19#114280.47↑4.9 years↓
"At the beginning of your end step, if an opponent lost life this turn, put a +1/+1 counter on target Vampire you control."
Captivating Vampire70%
$2.08↑#2488↑0.82↑16.1 years
"Tap five untapped Vampires you control: Gain control of target creature. It becomes a Vampire in addition to its other types."
Cordial Vampire70%
$2.22↑#1863↑0.42↑7.2 years↓
"Whenever this creature or another creature dies, put a +1/+1 counter on each Vampire you control."