Serra Disciple 
Creature — Bird Cleric
$0.18 #23705 0.00 8.4 years
Flying, first strike
Whenever you cast a historic spell, this creature gets +1/+1 until end of turn. (Artifacts, legendaries, and Sagas are historic.)
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Cards similar to Serra Disciple expected a card that isn't here?
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Jamie McCrimmon92%
$0.24↑#15577↑0.13↑2.9 years↓
"Whenever you cast a historic spell, this card gets +X/+X until end of turn, where X is that spell's mana value."
Daring Archaeologist88%
$0.22↑#196030.36↑8.4 years
"Whenever you cast a historic spell, put a +1/+1 counter on this creature."
Traxos, Scourge of Kroog84%
$0.36↑#3947↑0.39↑8.4 years
"Whenever you cast a historic spell, untap this card."
Jhoira, Weatherlight Captain84%
$0.43↑#1070↑0.72↑8.4 years
"Whenever you cast a historic spell, draw a card."
Relic Runner83%
$0.04↓#279500.008.4 years
"This creature can't be blocked if you've cast a historic spell this turn."
Mishra's Self-Replicator81%
$0.27↑#10645↑0.20↑8.4 years
"Whenever you cast a historic spell, you may pay . If you do, create a token that's a copy of this creature."
. If you do, create a token that's a copy of this creature."
Lingering Phantom81%
$0.05↓#28978↓0.008.4 years
"Whenever you cast a historic spell, you may pay 
. If you do, return this card from your graveyard to your hand."
. If you do, return this card from your graveyard to your hand."
Alistair, the Brigadier80%
$0.26↑#12148↑0.002.9 years↓
"Whenever you cast a historic spell, create a 1/1 white Soldier creature token."
Diligent Excavator80%
$0.27↑#18230↑0.33↑8.4 years
"Whenever you cast a historic spell, target player mills two cards."
Sarah Jane Smith80%
$0.32↑#9294↑0.29↑2.9 years↓
"Whenever you cast a historic spell, investigate. This ability triggers only once each turn."
Ori, Keeper of Songs79%
$0.17↓#17302↑0.000.1 years↓
"As long as you have an enduring story, this card gets +1/+0 and has vigilance."
Cabal Paladin79%
$0.18#16450↑0.93↑8.4 years
"Whenever you cast a historic spell, this creature deals 2 damage to each opponent."
Artificer's Assistant78%
$0.21↑#5562↑0.008.4 years
"Whenever you cast a historic spell, scry 1."
D'Avenant Trapper78%
$0.05↓#233760.20↑8.4 years
"Whenever you cast a historic spell, tap target creature an opponent controls."
Surtr, Fiery Jötun78%
$11.87↑#7295↑0.50↑2.2 years↓
"Whenever you cast a historic spell, this card deals 3 damage to any target."
Raff Capashen, Ship's Mage77%
$0.26↑#6407↑0.068.4 years
"You may cast historic spells as though they had flash."
+1 more matching line
Glóin, Dwarf Emissary75%
$4.41↑#2617↑0.26↑3.2 years↓
"Whenever you cast a historic spell, create a Treasure token. This ability triggers only once each turn."
Illusory Demon74%
$0.09↓#31101↓0.47↑17.3 years↑
"Flying"
Basim Ibn Ishaq74%
$2.39↑#3118↑0.32↑2.2 years↓
"Whenever you cast a historic spell, draw a card. this card can't be blocked this turn. This ability triggers only once each turn."
Thunder Spirit74%
$126.51↑#30468↓0.38↑32.3 years↑
"Flying, first strike"