Sidisi, Brood Tyrant 
Legendary Creature — Snake Shaman
$1.34 #3524 0.37 11.9 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%
$10.70↑#1905↑0.52↑1.4 years↓
"Whenever this creature enters or attacks, mill three cards."
+1 more matching line
Crawling Infestation93%
$0.24↓#4540↓0.14↓4.8 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%
$0.58↓#23816↓0.00↓0.2 years↓
"Whenever this card enters or attacks, mill two cards."
Curator Beastie82%
$0.31↓#6762↓0.13↓1.9 years↓
"Whenever this creature enters or attacks, manifest dread."
Visage of Dread // Dread Osseosaur80%
$0.17↓#19013↓0.12↓2.8 years↓
"Whenever this creature enters or attacks, you may mill two cards."
Screaming Phantom80%
$0.13↓#22110↓0.00↓2.8 years↓
"Whenever this creature attacks, mill a card."
Mysterio's Phantasm80%
$0.18↓#17526↓0.291.0 years↓
"Whenever this creature attacks, mill a card."
Ludevic, Necrogenius // Olag, Ludevic's Hubris80%
$0.19↓#21043↓0.294.9 years↓
"Whenever this card enters or attacks, mill a card."
Dreadhound80%
$0.18↓#5714↓0.25↓4.9 years↓
"When this creature enters, mill three cards."
+1 more matching line
Tribune of Rot80%
$0.33↓#22045↓0.24↓2.5 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%
$0.35↓#1404↑0.21↓16.1 years↑
"Whenever this creature enters or attacks, create two 2/2 black Zombie creature tokens."
Crawling Sensation77%
$0.22↓#30460.13↓10.4 years↓
"At the beginning of your upkeep, you may mill two cards."
+1 more matching line
The Wise Mothman77%
$0.38↓#36721.01↑2.5 years↓
"Whenever this card enters or attacks, each player gets a rad counter."
Hedge Shredder76%
$2.30↑#1265↑0.381.9 years↓
"Whenever this Vehicle attacks, you may mill two cards."
Blight Titan76%
$0.35↓#11007↓0.17↓3.4 years↓
"Whenever this creature enters or attacks, mill two cards, then incubate X, where X is the number of creature cards in your graveyard."
Inspirited Vanguard76%
$0.07↓#20715↓0.16↓1.4 years↓
"Whenever this creature enters or attacks, it endures 2."
Ultron the Annihilator75%
$20.38↑#13805↓0.00↓0.2 years↓
"Whenever Ultron enters or attacks, create a 2/2 colorless Robot Villain artifact creature token."
Necromancer's Assistant74%
$0.07↓#23075↓0.00↓12.1 years
"When this creature enters, mill three cards."
Excavation Mole74%
$0.14↓#25898↓0.19↓6.4 years↓
"When this creature enters, mill three cards."
Venomous Hierophant74%
$0.09↓#21461↓0.00↓6.6 years↓
"When this creature enters, mill three cards."