Roiling Dragonstorm 
Enchantment
$0.19 #5522 0.17 1.4 years
When this enchantment enters, draw two cards, then discard a card.
When a Dragon you control enters, return this enchantment to its owner's hand.
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Cards similar to Roiling Dragonstorm expected a card that isn't here?
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Teeming Dragonstorm96%
$0.15↓#16941↓0.131.4 years
"When a Dragon you control enters, return this enchantment to its owner's hand."
Breaching Dragonstorm90%
$0.29↑#3996↑0.171.4 years
"When a Dragon you control enters, return this enchantment to its owner's hand."
Encroaching Dragonstorm90%
$0.19#2468↑0.231.4 years
"When a Dragon you control enters, return this enchantment to its owner's hand."
Corroding Dragonstorm88%
$0.18↓#10804↓0.181.4 years
"When a Dragon you control enters, return this enchantment to its owner's hand."
Catalog88%
$0.07↓#16812↓0.00↓27.9 years↑
"Draw two cards, then discard a card."
Rousing Read86%
$0.21↑#19362↓0.00↓6.2 years↑
"When this Aura enters, draw two cards, then discard a card."
Master of Winds84%
$0.20↑#21201↓0.00↓5.9 years↑
"When this creature enters, draw two cards, then discard a card."
Racers' Scoreboard82%
$0.30↑#65630.07↓1.6 years
"When this artifact enters, draw two cards, then discard a card."
Uthros Scanship80%
$0.17↓#14406↓0.141.1 years
"When this Spacecraft enters, draw two cards, then discard a card."
Snow Day79%
$0.13↓#24332↓0.125.4 years↑
"Draw two cards, then discard a card."
Trial of Knowledge78%
$0.14↓#21819↓0.43↑9.4 years↑
"When this enchantment enters, draw three cards, then discard a card."
+1 more matching line
Artificer's Epiphany78%
$0.08↓#14137↓0.30↑11.1 years↑
"Draw two cards. If you control no artifacts, discard a card."
Confusticate and Bebother78%
$0.15↓#15653↓0.00↓0.1 years↓
"• Draw two cards, then discard a card."
Bazaar Trademage76%
$0.15↓#23494↓0.29↑7.2 years↑
"When this creature enters, draw two cards, then discard three cards."
Elite Instructor76%
$0.06↓#25870↓0.33↑6.6 years↑
"When this creature enters, draw a card, then discard a card."
Vodalian Merchant76%
$0.21↑#29082↓0.00↓25.9 years↑
"When this creature enters, draw a card, then discard a card."
Bellowing Crier76%
$0.15↓#8831↓0.05↓2.1 years
"When this creature enters, draw a card, then discard a card."
Merfolk Traders76%
$0.13↓#28095↓0.2029.2 years↑
"When this creature enters, draw a card, then discard a card."
The Bath Song76%
$0.23↑#48750.193.2 years↑
"Draw two cards, then discard a card."
Ghastly Discovery76%
$0.13↓#25175↓0.00↓18.3 years↑
"Draw two cards, then discard a card."