Managorger Hydra 
Creature — Hydra
$0.99 #997 0.48 11.1 years
Trample
Whenever a player casts a spell, put a +1/+1 counter on this creature.
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Taurean Mauler98%
$0.56↓#9470.31↓18.6 years↑
"Whenever an opponent casts a spell, you may put a +1/+1 counter on this creature."
Ishai, Ojutai Dragonspeaker95%
$3.29↑#4668↓0.59↑9.8 years↓
"Whenever an opponent casts a spell, put a +1/+1 counter on this card."
Forgotten Ancient94%
$0.38↓#390↑0.37↓23.3 years↑
"Whenever a player casts a spell, you may put a +1/+1 counter on this creature."
Sunscorch Regent94%
$0.30↓#1686↓0.29↓11.4 years
"Whenever an opponent casts a spell, put a +1/+1 counter on this creature and you gain 1 life."
Titania's Chosen91%
$0.31↓#17141↓0.06↓27.9 years↑
"Whenever a player casts a green spell, put a +1/+1 counter on this creature."
Thundering Mightmare90%
$0.39↓#10837↓0.33↓4.8 years↓
"As long as this card is paired with another creature, each of those creatures has "Whenever an opponent casts a spell, put a +1/+1 counter on this creature.""
Medusa, Inhuman Queen89%
$0.27↓#18977↓0.00↓0.2 years↓
"Whenever a player casts a noncreature spell, put a +1/+1 counter on this card."
Predatory Hunger88%
$0.65↓#10710↓0.00↓28.2 years↑
"Whenever an opponent casts a creature spell, put a +1/+1 counter on enchanted creature."
Mold Adder87%
$0.11↓#14542↓0.00↓17.1 years↑
"Whenever an opponent casts a blue or black spell, you may put a +1/+1 counter on this creature."
Witchstalker87%
$0.25↓#19122↓0.27↓13.1 years↑
"Whenever an opponent casts a blue or black spell during your turn, put a +1/+1 counter on this creature."
Steelburr Champion84%
$0.28↓#6838↓0.24↓2.1 years↓
"Whenever an opponent casts a noncreature spell, put a +1/+1 counter on this creature."
Noosegraf Mob82%
$0.29↓#10793↓0.33↓10.1 years↓
"Whenever a player casts a spell, remove a +1/+1 counter from this creature. If you do, create a 2/2 black Zombie creature token."
Elvish Handservant82%
$0.13↓#30326↓0.5318.9 years↑
"Whenever a player casts a Giant spell, you may put a +1/+1 counter on this creature."
Citanul Druid80%
$8.63↑#28175↓0.5332.5 years↑
"Whenever an opponent casts an artifact spell, put a +1/+1 counter on this creature."
Carnage Wurm78%
$0.14↓#18932↓0.29↓15.1 years↑
"Trample"
Scab-Clan Mauler78%
$0.04↓#27372↓0.22↓21.0 years↑
"Trample"
Dirtcowl Wurm77%
$2.32↑#15889↓0.4128.9 years↑
"Whenever an opponent plays a land, put a +1/+1 counter on this creature."
Witch-Maw Nephilim76%
$1.11↑#20308↓0.07↓20.6 years↑
"Whenever you cast a spell, you may put two +1/+1 counters on this creature."
Hobblefiend76%
$0.29↓#15997↓0.00↓6.2 years↓
"Trample"
Territorial Scythecat76%
$0.16↓#7958↓0.385.9 years↓
"Trample"