Rot Shambler 

Creature — Fungus
$0.17 #13578 0.00 10.9 years
Whenever another creature you control dies, put a +1/+1 counter on this creature.
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Cards similar to Rot Shambler expected a card that isn't here?
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Gavony Unhallowed100%
$0.08↓#19717↓0.87↑10.1 years
"Whenever another creature you control dies, put a +1/+1 counter on this creature."
Unruly Mob100%
$0.08↓#17858↓0.0014.9 years↑
"Whenever another creature you control dies, put a +1/+1 counter on this creature."
Vengeful Townsfolk100%
$0.12↓#20367↓0.33↑2.4 years↓
"Whenever one or more other creatures you control die, put a +1/+1 counter on this creature."
Guardian Kirin99%
$0.11↓#24342↓0.50↑5.2 years↓
"Whenever another creature you control dies, put a +1/+1 counter on this creature."
Algae Gharial98%
$0.13↓#21915↓0.0517.9 years↑
"Whenever another creature dies, you may put a +1/+1 counter on this creature."
Rockslide Elemental98%
$0.15↓#23966↓0.47↑17.9 years↑
"Whenever another creature dies, you may put a +1/+1 counter on this creature."
Lumberknot98%
$0.11↓#152840.25↑14.9 years↑
"Whenever a creature dies, put a +1/+1 counter on this creature."
Scavenger Drake98%
$0.18↑#22233↓0.40↑17.9 years↑
"Whenever another creature dies, you may put a +1/+1 counter on this creature."
Swarm of Bloodflies98%
$0.09↓#137370.50↑11.9 years↑
"Whenever another creature dies, put a +1/+1 counter on this creature."
Sengir Connoisseur97%
$0.21↑#20360↓0.004.0 years↓
"Whenever one or more other creatures die, put a +1/+1 counter on this creature. This ability triggers only once each turn."
Voracious Vermin96%
$0.37↑#6029↑0.19↑3.0 years↓
"Whenever another creature you control dies, put a +1/+1 counter on this creature."
Thanos, Death's Consort96%
$2.20↑#18354↓0.000.2 years↓
"Whenever another creature dies, put a +1/+1 counter on this card."
Mausoleum Harpy94%
$0.04↓#29123↓0.19↑8.6 years↓
"Whenever another creature you control dies, if you have the city's blessing, put a +1/+1 counter on this creature."
Judge Magister Gabranth94%
$0.17#9191↑0.27↑1.2 years↓
"Whenever another creature or artifact you control dies, put a +1/+1 counter on this card."
Venomcrawler91%
$0.91↑#9871↑0.22↑3.9 years↓
"Whenever another creature dies, put a +1/+1 counter on this creature."
Rising Populace91%
$0.04↓#22203↓0.22↑7.3 years↓
"Whenever another creature or planeswalker you control dies, put a +1/+1 counter on this creature."
Anafenza, Unyielding Lineage90%
$0.26↑#7799↑0.10↑1.4 years↓
"Whenever another nontoken creature you control dies, this card endures 2."
Slurrk, All-Ingesting89%
$0.29↑#9671↑0.41↑5.8 years↓
"Whenever this card or another creature you control dies, if it had a +1/+1 counter on it, put a +1/+1 counter on each creature you control that has a +1/+1 counter on it."
Savior of the Sleeping88%
$0.08↓#22857↓0.003.0 years↓
"Whenever an enchantment you control is put into a graveyard from the battlefield, put a +1/+1 counter on this creature."