Mirror of the Forebears 
Artifact
$1.81 #10612 0.12 9.2 years
As this artifact enters, choose a creature type.
: 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.Click a line or tag to filter
Cards similar to Mirror of the Forebears 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.
Molten Echoes88%
$8.79↑#2474↑0.39↑6.5 years↓
"As this enchantment enters, choose a creature type."
Belbe's Portal84%
$1.15↓#12745↓0.47↑26.7 years↑
"As this artifact enters, choose a creature type."
Cryptoplasm84%
$0.64↓#12938↓0.44↑15.7 years↑
"At the beginning of your upkeep, you may have this creature become a copy of another target creature, except it has this ability."
Instruments of War84%
$0.37↓#14293↓0.31↑3.9 years↓
"As this artifact enters, choose a creature type."
Urza's Incubator83%
$20.34↑#311↑0.62↑27.4 years↑
"As this artifact enters, choose a creature type."
Door of Destinies82%
$2.42↑#1087↑0.41↑18.8 years↑
"As this artifact enters, choose a creature type."
Rally the Ranks82%
$0.35↓#4714↑0.115.7 years↓
"As this enchantment enters, choose a creature type."
Herald's Horn82%
$2.80↑#151↑0.24↑9.2 years
"As this artifact enters, choose a creature type."
Pillar of Origins82%
$0.43↓#6050↑0.219.1 years
"As this artifact enters, choose a creature type."
Adaptive Automaton82%
$0.43↓#1782↑0.1415.3 years↑
"As this creature enters, choose a creature type."
+1 more matching line
Shared Triumph81%
$3.98↑#16789↓0.1224.0 years↑
"As this enchantment enters, choose a creature type."
Obelisk of Urd80%
$2.98↑#4090↑0.1812.3 years↑
"As this artifact enters, choose a creature type."
Radiant Destiny80%
$0.30↓#5650↑0.00↓8.8 years
"As this enchantment enters, choose a creature type."
Kindred Boon80%
$0.31↓#7393↑0.219.2 years
"As this enchantment enters, choose a creature type."
Reflections of Littjara80%
$1.70↓#694↑0.51↑5.7 years↓
"As this enchantment enters, choose a creature type."
Doom Cannon80%
$0.38↓#27255↓0.0724.0 years↑
"As this artifact enters, choose a creature type."
Metallic Mimic80%
$0.73↓#947↑0.199.7 years
"As this creature enters, choose a creature type."
+1 more matching line
Metamorphic Alteration80%
$0.35↓#14651↓0.068.3 years
"As this Aura enters, choose a creature."
Loki, Lord of Misrule80%
$41.48↑#109650.72↑0.3 years↓
"
, 
: Choose target creature you control. Each creature you control other than the chosen creature becomes a copy of that creature until end of turn, except it isn't legendary. Activate only as a sorcery."
, : Choose target creature you control. Each creature you control other than the chosen creature becomes a copy of that creature until end of turn, except it isn't legendary. Activate only as a sorcery."
Vanquisher's Banner80%
$2.88↑#384↑0.27↑9.1 years
"As this artifact enters, choose a creature type."