Tainted Observer 
Creature — Phyrexian Bird
$0.27 #7212 0.39 3.7 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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"Whenever another nontoken creature you control enters, proliferate."
Pestilent Syphoner93%
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"Toxic 1"
Ichorspit Basilisk92%
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Bilious Skulldweller92%
$0.35↑#4562↑0.09↓3.7 years
"Toxic 1"
Sheoldred's Headcleaver92%
$0.16↓#14753↓0.413.7 years
"Toxic 2"
Branchblight Stalker90%
$0.24↓#13387↓0.16↓3.7 years
"Toxic 2"
Tyrranax Atrocity88%
$0.27#11863↓0.74↑3.7 years
"Toxic 3"
Crawling Chorus85%
$0.32↑#65280.29↓3.7 years
"Toxic 1"
Stinging Hivemaster85%
$0.17↓#15981↓0.06↓3.7 years
"Toxic 1"
Myr Convert84%
$0.24↓#2476↑0.18↓3.7 years
"Toxic 1"
Duelist of Deep Faith83%
$0.26↓#14456↓0.00↓3.7 years
"Toxic 1"
Atraxa, Praetors' Voice82%
$26.03↑#2362↑1.77↑9.9 years↑
"At the beginning of your end step, proliferate."
Venerated Rotpriest82%
$3.06↑#2806↑1.07↑3.7 years
"Toxic 1"
Blightbelly Rat82%
$0.26↓#2797↑0.313.7 years
"Toxic 1"
Unctus's Retrofitter82%
$0.19↓#21091↓0.12↓3.7 years
"Toxic 1"
Dune Mover82%
$0.28↑#10370↓0.333.7 years
"Toxic 1"
Annex Sentry81%
$0.26↓#9030↓0.00↓3.7 years
"Toxic 1"
Nimraiser Paladin81%
$0.23↓#15816↓0.07↓3.7 years
"Toxic 2"
Tromell, Seymour's Butler80%
$0.30↑#3942↑0.311.4 years↓
", 
: Proliferate X times, where X is the number of nontoken creatures you control that entered this turn."
, : Proliferate X times, where X is the number of nontoken creatures you control that entered this turn."