Combat Research 
Enchantment — Aura
$0.81 #2190 0.16 4.0 years
Enchant creature
Enchanted creature has "Whenever this creature deals combat damage to a player, draw a card."
As long as enchanted creature is legendary, it gets +1/+1 and has ward 
. (Whenever enchanted creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)
. (Whenever enchanted creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)Click a line or tag to filter
Cards similar to Combat Research expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Sixth Sense95%
$0.33↓#6168↓0.26↑9.4 years↑
"Enchanted creature has "Whenever this creature deals combat damage to a player, you may draw a card.""
+1 more matching line
Mischievous Catgeist // Catlike Curiosity89%
$0.26↓#11872↓0.05↓4.8 years
"Enchanted creature has "Whenever this creature deals combat damage to a player, draw a card.""
+1 more matching line
Coastal Piracy88%
$0.26↓#1510↑0.2026.9 years↑
"Whenever a creature you control deals combat damage to an opponent, you may draw a card."
Neurok Commando86%
$0.08↓#18935↓0.1515.6 years↑
"Whenever this creature deals combat damage to a player, you may draw a card."
Stealer of Secrets86%
$0.05↓#20654↓0.2413.9 years↑
"Whenever this creature deals combat damage to a player, draw a card."
Scroll Thief86%
$0.06↓#17095↓0.36↑16.1 years↑
"Whenever this creature deals combat damage to a player, draw a card."
Nine-Tail White Fox86%
$0.21↓#22046↓0.31↑8.2 years↑
"Whenever this creature deals combat damage to a player, draw a card."
Ophidian Eye86%
$12.21↑#1633↑0.56↑19.9 years↑
"Whenever enchanted creature deals damage to an opponent, you may draw a card."
+1 more matching line
Keen Sense86%
$2.19↑#2859↓0.1819.6 years↑
"Whenever enchanted creature deals damage to an opponent, you may draw a card."
Snake Umbra86%
$0.81#1497↑0.2016.4 years↑
"Enchanted creature gets +1/+1 and has "Whenever this creature deals damage to an opponent, you may draw a card.""
Rogue's Gloves86%
$0.30↓#4101↓0.1312.1 years↑
"Whenever equipped creature deals combat damage to a player, you may draw a card."
Curious Obsession85%
$0.22↓#8565↓0.06↓8.6 years↑
"Enchanted creature gets +1/+1 and has "Whenever this creature deals combat damage to a player, you may draw a card.""
+1 more matching line
Sea-Dasher Octopus85%
$0.80↓#4721↓0.186.4 years↑
"Whenever this creature deals combat damage to a player, draw a card."
Sleeper's Robe84%
$0.59↓#15516↓0.29↑25.9 years↑
"Whenever enchanted creature deals combat damage to an opponent, you may draw a card."
+1 more matching line
Ultimecia, Temporal Threat84%
$0.43↓#7547↓0.57↑1.2 years↓
"Whenever a creature you control deals combat damage to a player, draw a card."
Staggering Insight83%
$0.19↓#5492↓0.26↑6.6 years↑
"Enchanted creature gets +1/+1 and has lifelink and "Whenever this creature deals combat damage to a player, draw a card.""
+1 more matching line
Reconnaissance Mission83%
$0.31↓#892↑0.156.4 years↑
"Whenever a creature you control deals combat damage to a player, you may draw a card."
Edric, Spymaster of Trest83%
$1.66↑#3413↓0.49↑15.2 years↑
"Whenever a creature deals combat damage to one of your opponents, its controller may draw a card."
Marchesa's Infiltrator82%
$0.23↓#22216↓0.33↑12.2 years↑
"Whenever this creature deals combat damage to a player, draw a card."
Bident of Thassa82%
$0.41↓#429↑0.31↑13.0 years↑
"Whenever a creature you control deals combat damage to a player, you may draw a card."