Seismic Tutelage 
Enchantment — Aura
$0.88 #11409 0.00 0.8 years
Enchant creature
When this Aura enters, put a +1/+1 counter on enchanted creature.
Whenever enchanted creature attacks, double the number of +1/+1 counters on it.
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Cards similar to Seismic Tutelage expected a card that isn't here?
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Hydra's Growth98%
$1.08↑#2107↑0.34↑6.6 years↑
"When this Aura enters, put a +1/+1 counter on enchanted creature."
+1 more matching line
Level Up97%
$2.34↑#4391↑0.000.5 years
"When this Aura enters, put a +1/+1 counter on enchanted creature."
+1 more matching line
Fractal Harness91%
$0.30↓#6428↑0.075.4 years↑
"Whenever equipped creature attacks, double the number of +1/+1 counters on it."
+1 more matching line
Byrke, Long Ear of the Law89%
$6.85↑#5927↑0.29↑2.1 years↑
"Whenever a creature you control with a +1/+1 counter on it attacks, double the number of +1/+1 counters on it."
Sword of Hours88%
$5.01↑#4996↑0.34↑5.1 years↑
"Whenever equipped creature attacks, put a +1/+1 counter on it."
Lily Bowen, Raging Grandma84%
$0.51↓#6967↑0.002.5 years↑
"this card enters with two +1/+1 counters on it."
Ornery Tumblewagg84%
$0.34↓#4990↑0.90↑2.4 years↑
"Whenever this creature attacks while saddled, double the number of +1/+1 counters on target creature."
Kalonian Hydra83%
$5.87↑#1120↑0.45↑13.1 years↑
"Whenever this creature attacks, double the number of +1/+1 counters on each creature you control."
+1 more matching line
Mossborn Hydra83%
$12.69↑#777↑0.75↑1.8 years↑
"This creature enters with a +1/+1 counter on it."
Primordial Hydra83%
$1.39↑#2463↑0.45↑15.1 years↑
"This creature enters with X +1/+1 counters on it."
+1 more matching line
Armory of Iroas82%
$0.22↓#7937↑0.22↑12.3 years↑
"Whenever equipped creature attacks, put a +1/+1 counter on it."
Bone Sabres82%
$5.73↑#5958↑0.24↑3.9 years↑
"Whenever equipped creature attacks, put four +1/+1 counters on it."
Ascendant Acolyte81%
$0.34↓#109920.064.5 years↑
"This creature enters with a +1/+1 counter on it for each +1/+1 counter among other creatures you control."
+1 more matching line
Shape of the Wiitigo80%
$0.41↓#25332↓0.29↑20.1 years↑
"When this Aura enters, put six +1/+1 counters on enchanted creature."
+2 more matching lines
Sazh Katzroy78%
$0.66↓#5221↑0.20↑1.2 years
"Whenever this card attacks, put a +1/+1 counter on target creature, then double the number of +1/+1 counters on that creature."
Bright-Palm, Soul Awakener78%
$0.26↓#95430.67↑3.4 years↑
"Whenever this creature attacks, double the number of +1/+1 counters on target creature. That creature can't be blocked by creatures with power 2 or less this turn."
Curse of Predation77%
$0.20↓#14520↓0.25↑12.8 years↑
"Whenever a creature attacks enchanted player, put a +1/+1 counter on it."
Forced Adaptation77%
$0.17↓#8317↑0.50↑13.6 years↑
"At the beginning of your upkeep, put a +1/+1 counter on enchanted creature."
+1 more matching line
Armasaur Guide77%
$0.17↓#17748↓0.051.8 years↑
"Whenever you attack with three or more creatures, put a +1/+1 counter on target creature you control."
Sisterhood of Karn76%
$0.21↓#121200.31↑2.9 years↑
"This creature enters with a +1/+1 counter on it."