Dragon's Rage Channeler 
Creature — Human Shaman
$1.10 #1860 0.23 5.3 years
Whenever you cast a noncreature spell, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)
Delirium — As long as there are four or more card types among cards in your graveyard, this creature gets +2/+2, has flying, and attacks each combat if able.
Click a line or tag to filter
Cards similar to Dragon's Rage Channeler 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.
Cruel Witness86%
$0.20↓#18800↓0.06↓4.9 years
"Whenever you cast a noncreature spell, surveil 1."
H.E.R.B.I.E., Lovable Robot84%
$1.01↓#10302↓0.39↑0.3 years↓
"At the beginning of combat on your turn, if you've cast a noncreature spell this turn, surveil 1."
Foul Watcher84%
$0.14↓#21365↓0.00↓5.3 years
"This creature gets +1/+0 as long as there are four or more card types among cards in your graveyard."
+1 more matching line
Garland, Knight of Cornelia // Chaos, the Endless82%
$0.18↓#11689↓0.41↑1.4 years↓
"Whenever you cast a noncreature spell, surveil 1."
Unwelcome Sprite80%
$0.22↓#12804↓0.04↓0.7 years↓
"Whenever you cast a spell during an opponent's turn, surveil 2."
Moorland Drifter80%
$0.07↓#31248↓0.00↓10.5 years↑
"This creature has flying as long as there are four or more card types among cards in your graveyard."
Grim Flayer76%
$0.21↓#11440↓0.00↓10.2 years↑
"This creature gets +2/+2 as long as there are four or more card types among cards in your graveyard."
+1 more matching line
Rune-Sealed Wall76%
$0.24↓#10579↓0.00↓1.9 years↓
"
: Surveil 1."
: Surveil 1."
Sinister Starfish76%
$0.10↓#9225↓0.00↓5.3 years
": Surveil 1."
: Surveil 1."
Case of the Shifting Visage75%
$0.36↓#8795↓0.13↓2.7 years↓
"At the beginning of your upkeep, surveil 1."
Gnarlwood Dryad75%
$0.27↓#8839↓0.00↓10.2 years↑
"This creature gets +2/+2 as long as there are four or more card types among cards in your graveyard."
Wretched Doll75%
$0.14↓#21347↓0.06↓1.7 years↓
"
, : Surveil 1."
, : Surveil 1."
Moldgraf Scavenger74%
$0.04↓#27332↓0.1510.5 years↑
"This creature gets +3/+0 as long as there are four or more card types among cards in your graveyard."
Vanguard Seraph74%
$0.17↓#10496↓0.10↓1.9 years↓
"Whenever you gain life for the first time each turn, surveil 1."
Broodspinner74%
$0.26↓#10692↓0.322.1 years↓
"When this creature enters, surveil 2."
+1 more matching line
Fandaniel, Telophoroi Ascian74%
$0.36↓#3186↓0.54↑1.4 years↓
"Whenever you cast an instant or sorcery spell, surveil 1."
Appendage Amalgam73%
$0.17↓#14094↓0.00↓2.1 years↓
"Whenever this creature attacks, surveil 1."
Nightveil Sprite73%
$0.14↓#6901↓0.00↓8.0 years↑
"Whenever this creature attacks, surveil 1."
Fear of Surveillance73%
$0.24↓#12215↓0.00↓2.1 years↓
"Whenever this creature attacks, surveil 1."
Il Mheg Pixie73%
$0.20↓#10983↓0.211.4 years↓
"Whenever this creature attacks, surveil 1."