Mistform Warchief 
Creature — Illusion
$0.21 #20278 0.00 23.4 years
Creature spells you cast that share a creature type with this creature cost 
less to cast.
less to cast.
: This creature becomes the creature type of your choice until end of turn.Click a line or tag to filter
Cards similar to Mistform Warchief 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.
Urza's Incubator86%
$20.34↑#311↑0.62↑27.4 years↑
"Creature spells of the chosen type cost less to cast."
less to cast."
Herald's Horn84%
$2.80↑#151↑0.24↑9.2 years↓
"Creature spells you cast of the chosen type cost less to cast."
less to cast."
Titan of Littjara78%
$0.32↑#4891↑0.33↑3.2 years↓
"As this creature enters, choose a creature type."
+1 more matching line
Planar Gate76%
$74.69↑#214340.38↑32.4 years↑
"Creature spells you cast cost less to cast."
less to cast."
Mistform Dreamer74%
$0.07↓#31155↓0.0024.0 years
": This creature becomes the creature type of your choice until end of turn."
: This creature becomes the creature type of your choice until end of turn."
Mistform Skyreaver74%
$0.27↑#31515↓0.0024.0 years
": This creature becomes the creature type of your choice until end of turn."
: This creature becomes the creature type of your choice until end of turn."
Synchronized Eviction74%
$0.24↑#203950.063.9 years↓
"This spell costs less to cast if you control at least two creatures that share a creature type."
less to cast if you control at least two creatures that share a creature type."
Honest Rutstein72%
$0.38↑#1855↑0.16↑2.5 years↓
"Creature spells you cast cost less to cast."
less to cast."
Gathering Stone70%
$0.44↑#3079↑0.10↑0.7 years↓
"Spells you cast of the chosen type cost less to cast."
less to cast."
Mirror of the Forebears70%
$1.81↑#10612↑0.12↑9.2 years↓
": Until end of turn, this artifact becomes a copy of target creature you control of the chosen type, except it's an artifact in addition to its other types."
: Until end of turn, this artifact becomes a copy of target creature you control of the chosen type, except it's an artifact in addition to its other types."+1 more matching line
Marauding Raptor70%
$0.85↑#3049↑0.19↑7.3 years↓
"Creature spells you cast cost less to cast."
less to cast."
Heartless Summoning70%
$1.63↑#2677↑0.37↑15.1 years↓
"Creature spells you cast cost less to cast."
less to cast."