Tainted Observer 
Creature — Phyrexian Bird
$0.22 #7047 0.47 3.6 years
Flying
Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)
Whenever another creature you control enters, you may pay 
. If you do, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
. If you do, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)Click a line or tag to filter
Cards similar to Tainted Observer expected a card that isn't here?
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Metastatic Evangel93%
$0.37↑#1514↑0.33↓2.2 years↓
"Whenever another nontoken creature you control enters, proliferate."
Pestilent Syphoner93%
$0.29↑#64790.503.6 years
"Toxic 1"
+1 more matching line
Bilious Skulldweller92%
$0.39↑#4526↑0.20↓3.6 years
"Toxic 1"
Jawbone Duelist92%
$0.29↑#9922↓0.15↓3.6 years
"Toxic 1"
Ichorspit Basilisk92%
$0.30↑#81420.573.6 years
"Toxic 1"
Sheoldred's Headcleaver92%
$0.24↑#14535↓0.393.6 years
"Toxic 2"
Branchblight Stalker90%
$0.22#13163↓0.533.6 years
"Toxic 2"
Tyrranax Atrocity88%
$0.23↑#11641↓0.33↓3.6 years
"Toxic 3"
Crawling Chorus84%
$0.29↑#63830.09↓3.6 years
"Toxic 1"
Stinging Hivemaster84%
$0.17↓#15784↓0.24↓3.6 years
"Toxic 1"
Myr Convert84%
$0.24↑#2455↑0.26↓3.6 years
"Toxic 1"
Atraxa, Praetors' Voice84%
$24.32↑#2475↑1.72↑9.8 years↑
"At the beginning of your end step, proliferate."
Duelist of Deep Faith82%
$0.23↑#14219↓0.20↓3.6 years
"Toxic 1"
Venerated Rotpriest82%
$3.04↑#2778↑0.90↑3.6 years
"Toxic 1"
Dune Mover82%
$0.24↑#10218↓0.12↓3.6 years
"Toxic 1"
Unctus's Retrofitter82%
$0.19↓#20883↓0.26↓3.6 years
"Toxic 1"
Blightbelly Rat82%
$0.24↑#2785↑0.29↓3.6 years
"Toxic 1"
Annex Sentry81%
$0.21↓#8904↓0.16↓3.6 years
"Toxic 1"
Nimraiser Paladin81%
$0.24↑#15559↓0.483.6 years
"Toxic 2"
Paladin of Predation80%
$0.22#11099↓0.26↓3.6 years
"Toxic 6"