The Red Terror 
Legendary Creature — Tyranid
$5.70 #7774 0.11 4.0 years
Advanced Species — Whenever a red source you control deals damage to one or more permanents and/or players, put a +1/+1 counter on The Red Terror.
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Cards similar to The Red Terror expected a card that isn't here?
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Ring of Valkas76%
$0.41↓#5198↑0.0614.3 years↑
"At the beginning of your upkeep, put a +1/+1 counter on equipped creature if it's red."
Heartlash Cinder75%
$0.14↓#26652↓0.0618.2 years↑
"When this creature enters, it gets +X/+0 until end of turn, where X is the number of red mana symbols in the mana costs of permanents you control."
Runaway Steam-Kin73%
$1.76↓#1683↑0.32↑8.0 years↑
"Whenever you cast a red spell, if this creature has fewer than three +1/+1 counters on it, put a +1/+1 counter on this creature."
Mudbrawler Cohort73%
$0.14↓#27330↓0.00↓18.5 years↑
"This creature gets +1/+1 as long as you control another red creature."
War Elemental72%
$5.18↓#13554↓0.00↓23.0 years↑
"Whenever an opponent is dealt damage, put that many +1/+1 counters on this creature."
Embermaw Hellion72%
$0.24↓#14673↓0.1111.3 years↑
"If another red source you control would deal damage to a permanent or player, it deals that much damage plus 1 to that permanent or player instead."
Torbran, Thane of Red Fell72%
$4.64↓#1007↑0.55↑7.0 years↑
"If a red source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead."
Foundry Street Denizen70%
$0.19↓#10581↓0.00↓13.7 years↑
"Whenever another red creature you control enters, this creature gets +1/+0 until end of turn."