Horn of Plenty 
Artifact
$0.71 #25298 0.06 27.0 years
Whenever a player casts a spell, they may pay
. If the player does, they draw a card at the beginning of the next end step.
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Unifying Theory86%
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"Whenever a player casts a spell, that player may pay
. If the player does, they draw a card."
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"Whenever a player casts a spell, if it's not their turn, that player draws a card."
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"At the beginning of each other player's draw step, that player draws an additional card."
Fecundity76%
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"Whenever a creature dies, that creature's controller may draw a card."
Zenith Chronicler75%
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"Whenever a player casts their first multicolored spell each turn, each other player draws a card."
Font of Mythos75%
$14.80↑#2179↑0.28↑17.7 years↓
"At the beginning of each player's draw step, that player draws two additional cards."
Dictate of Kruphix75%
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"At the beginning of each player's draw step, that player draws an additional card."
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"Reveal the first card you draw each turn. Whenever you reveal a creature card this way, draw a card."
Horn of Greed74%
$7.19↑#2123↑0.39↑28.6 years↑
"Whenever a player plays a land, that player draws a card."
Watchful Naga74%
$0.08↓#263310.069.5 years↓
"You may exert this creature as it attacks. When you do, draw a card."
Edric, Spymaster of Trest74%
$2.02↑#3466↑0.46↑15.3 years↓
"Whenever a creature deals combat damage to one of your opponents, its controller may draw a card."
Heartwood Storyteller72%
$4.59↑#4008↑0.37↑19.5 years↓
"Whenever a player casts a noncreature spell, each of that player's opponents may draw a card."
Mercadian Atlas72%
$0.60↓#248870.1227.0 years
"At the beginning of your end step, if you didn't play a land this turn, you may draw a card."
Rhystic Study71%
$67.20↑#46↑2.82↑26.4 years
"Whenever an opponent casts a spell, you may draw a card unless that player pays
."
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$0.37↓#12330↑0.1410.5 years↓
"Whenever an opponent casts a spell during your turn, draw a card."
Faramir, Prince of Ithilien70%
$0.39↓#4781↑0.47↑3.3 years↓
"At the beginning of your end step, choose an opponent. At the beginning of that player's next end step, you draw a card if they didn't attack you that turn. Otherwise, create three 1/1 white Human Soldier creature tokens."