Sidisi, Brood Tyrant 
Legendary Creature — Snake Shaman
$1.05 #3567 0.31 12.1 years
Whenever Sidisi enters or attacks, mill three cards.
Whenever one or more creature cards are put into your graveyard from your library, create a 2/2 black Zombie creature token.
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Cards similar to Sidisi, Brood Tyrant expected a card that isn't here?
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Colossal Grave-Reaver97%
$11.20↑#1852↑0.73↑1.5 years↓
"Whenever this creature enters or attacks, mill three cards."
+1 more matching line
Crawling Infestation93%
$0.24↓#4674↓0.10↓4.9 years↓
"Whenever one or more creature cards are put into your graveyard from anywhere during your turn, create a 1/1 green Insect creature token. This ability triggers only once each turn."
+1 more matching line
Madame Hydra, Reanimated86%
$0.24↓#22601↓0.290.3 years↓
"Whenever this card enters or attacks, mill two cards."
Curator Beastie82%
$0.28↓#7145↓0.312.1 years↓
"Whenever this creature enters or attacks, manifest dread."
Visage of Dread // Dread Osseosaur80%
$0.18↓#19389↓0.292.9 years↓
"Whenever this creature enters or attacks, you may mill two cards."
Screaming Phantom80%
$0.13↓#22688↓0.00↓2.9 years↓
"Whenever this creature attacks, mill a card."
Mysterio's Phantasm80%
$0.10↓#17595↓0.00↓1.1 years↓
"Whenever this creature attacks, mill a card."
Ludevic, Necrogenius // Olag, Ludevic's Hubris80%
$0.20↓#21400↓0.19↓5.1 years↓
"Whenever this card enters or attacks, mill a card."
Dreadhound80%
$0.16↓#5831↓0.275.1 years↓
"When this creature enters, mill three cards."
+1 more matching line
Tribune of Rot80%
$0.32↓#22451↓0.222.7 years↓
"Whenever this creature attacks, mill two cards. For each creature card milled this way, create a 1/1 green Saproling creature token."
Grave Titan78%
$0.27↓#1373↑0.2316.3 years↑
"Whenever this creature enters or attacks, create two 2/2 black Zombie creature tokens."
Crawling Sensation77%
$0.25↓#31570.10↓10.5 years↓
"At the beginning of your upkeep, you may mill two cards."
+1 more matching line
Hedge Shredder76%
$2.49↑#1285↑0.412.1 years↓
"Whenever this Vehicle attacks, you may mill two cards."
The Wise Mothman76%
$0.39↓#37321.03↑2.6 years↓
"Whenever this card enters or attacks, each player gets a rad counter."
Inspirited Vanguard76%
$0.06↓#20848↓0.00↓1.5 years↓
"Whenever this creature enters or attacks, it endures 2."
Blight Titan74%
$0.39↓#11289↓0.12↓3.5 years↓
"Whenever this creature enters or attacks, mill two cards, then incubate X, where X is the number of creature cards in your graveyard."
Venomous Hierophant74%
$0.09↓#21775↓0.06↓6.7 years↓
"When this creature enters, mill three cards."
Necromancer's Assistant74%
$0.03↓#23347↓0.00↓12.3 years
"When this creature enters, mill three cards."
Excavation Mole74%
$0.11↓#26255↓0.00↓6.5 years↓
"When this creature enters, mill three cards."
Ultron the Annihilator74%
$19.57↑#12810↓0.47↑0.3 years↓
"Whenever Ultron enters or attacks, create a 2/2 colorless Robot Villain artifact creature token."