Unblinking Observer 
Creature — Homunculus
$0.15 #18766 0.33 4.9 years
: Add . Spend this mana only to pay a disturb cost or cast an instant or sorcery spell.Click a line or tag to filter
Cards similar to Unblinking Observer 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.
Vodalian Arcanist94%
$0.07↓#174760.50↑8.4 years↑
": Add 
. Spend this mana only to cast an instant or sorcery spell."
: Add . Spend this mana only to cast an instant or sorcery spell."
Hydro-Channeler91%
$0.17↑#13473↑0.00↓0.4 years↓
": Add . Spend this mana only to cast an instant or sorcery spell."
: Add . Spend this mana only to cast an instant or sorcery spell."
Volshe Tideturner87%
$0.20↑#14726↑0.00↓4.0 years
": Add . Spend this mana only to cast an instant or sorcery spell or a kicked spell."
: Add . Spend this mana only to cast an instant or sorcery spell or a kicked spell."
Karfell Harbinger85%
$0.14↓#152010.00↓5.6 years
": Add . Spend this mana only to foretell a card from your hand or cast an instant or sorcery spell."
: Add . Spend this mana only to foretell a card from your hand or cast an instant or sorcery spell."
Pelargir Survivor85%
$0.09↓#150390.00↓3.2 years↓
": Add one mana of any color. Spend this mana only to cast an instant or sorcery spell."
: Add one mana of any color. Spend this mana only to cast an instant or sorcery spell."
Abstract Paintmage84%
$0.26↑#10078↑0.00↓0.4 years↓
"At the beginning of your first main phase, add 
. Spend this mana only to cast instant and sorcery spells."
. Spend this mana only to cast instant and sorcery spells."
Curious Homunculus // Voracious Reader82%
$0.33↑#9470↑0.2910.1 years↑
": Add . Spend this mana only to cast an instant or sorcery spell."
: Add . Spend this mana only to cast an instant or sorcery spell."
Cormela, Glamour Thief81%
$0.21↑#6269↑0.384.4 years
", : Add 
. Spend this mana only to cast instant and/or sorcery spells."
, : Add . Spend this mana only to cast instant and/or sorcery spells."
Life of Toshiro Umezawa // Memory of Toshiro80%
$0.21↑#172950.00↓4.5 years
", Pay 1 life: Add . Spend this mana only to cast an instant or sorcery spell."
, Pay 1 life: Add . Spend this mana only to cast an instant or sorcery spell."
Tablet of Discovery78%
$1.85↑#4045↑0.00↓0.4 years↓
": Add . Spend this mana only to cast instant and sorcery spells."
: Add . Spend this mana only to cast instant and sorcery spells."
Jaya Ballard78%
$0.45↑#9108↑0.248.4 years↑
"+1: Add . Spend this mana only to cast instant or sorcery spells."
. Spend this mana only to cast instant or sorcery spells."
Humble Naturalist78%
$0.20↑#170130.48↑6.4 years↑
": Add one mana of any color. Spend this mana only to cast a creature spell."
: Add one mana of any color. Spend this mana only to cast a creature spell."
Oaken Siren76%
$0.26↑#10702↑0.06↓2.8 years↓
": Add . Spend this mana only to cast an artifact spell or activate an ability of an artifact source."
: Add . Spend this mana only to cast an artifact spell or activate an ability of an artifact source."
Somberwald Sage76%
$0.59↑#2559↑0.20↓14.3 years↑
": Add three mana of any one color. Spend this mana only to cast creature spells."
: Add three mana of any one color. Spend this mana only to cast creature spells."
Ore-Rich Stalactite // Cosmium Catalyst76%
$0.33↑#13808↑0.00↓2.8 years↓
": Add . Spend this mana only to cast an instant or sorcery spell."
: Add . Spend this mana only to cast an instant or sorcery spell."
Beastcaller Savant76%
$0.49↑#4977↑0.2510.9 years↑
": Add one mana of any color. Spend this mana only to cast a creature spell."
: Add one mana of any color. Spend this mana only to cast a creature spell."
Omen Hawker75%
$0.36↑#5016↑0.00↓3.4 years↓
": Add . Spend this mana only to activate abilities."
: Add . Spend this mana only to activate abilities."
Guidelight Optimizer74%
$0.21↑#11026↑0.21↓1.6 years↓
": Add . Spend this mana only to cast an artifact spell or activate an ability."
: Add . Spend this mana only to cast an artifact spell or activate an ability."
Automated Artificer74%
$0.20↑#9007↑0.404.5 years
": Add . Spend this mana only to activate an ability or cast an artifact spell."
: Add . Spend this mana only to activate an ability or cast an artifact spell."
Purple Dragon Punks74%
$0.09↓#218010.00↓0.5 years↓
": Add . Spend this mana only to cast an artifact spell or to activate an ability."
: Add . Spend this mana only to cast an artifact spell or to activate an ability."