Mana Geyser 
Sorcery
$1.10 #293 0.81 22.3 years
Add for each tapped land your opponents control.
for each tapped land your opponents control.Click a line or tag to filter
Cards similar to Mana Geyser 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.
Inner Fire84%
$1.38↑#8787↓0.12↓21.3 years
"Add for each card in your hand."
for each card in your hand."
Seething Song83%
$10.70↑#3110.50↓22.9 years
"Add ."
."
Battle Hymn82%
$1.55↑#1660↓0.38↓14.3 years↓
"Add for each creature you control."
for each creature you control."
Infernal Plunge82%
$0.47↓#3059↓0.17↓14.9 years↓
"Add ."
."
Pyretic Ritual82%
$5.98↑#743↓0.32↓16.1 years↓
"Add ."
."
Dragon's Desire81%
$3.48↑#15045↓0.00↓0.1 years↓
"Add for each artifact your opponents control."
for each artifact your opponents control."
Channel the Suns81%
$0.70↓#16970↓0.47↓22.3 years
"Add 
."
."
Blazing Firesinger // Seething Song80%
$0.33↓#6165↓0.50↓0.4 years↓
"Add ."
."
Mana Seism80%
$0.21↓#21698↓0.22↓21.9 years
"Sacrifice any number of lands, then add that much 
."
."
Cabal Ritual77%
$13.84↑#449↓0.48↓24.6 years↑
"Add ."
."
Geosurge75%
$3.84↑#6355↓0.41↓15.3 years↓
"Add . Spend this mana only to cast artifact or creature spells."
. Spend this mana only to cast artifact or creature spells."
Rite of Flame74%
$4.74↑#655↓0.31↓20.1 years↓
"Add , then add for each card named this card in each graveyard."
, then add for each card named this card in each graveyard."
Desperate Ritual74%
$6.59↑#962↓0.35↓21.9 years
"Add ."
."
Culling the Weak72%
$6.97↑#531↓0.51↓28.2 years↑
"Add ."
."
Seismic Spike70%
$0.18↓#16710↓1.05↑20.9 years↓
"Destroy target land. Add ."
."
Dark Ritual70%
$0.44↓#33↑0.67↓33.1 years↑
"Add ."
."
Pallimud70%
$0.34↓#30464↓0.12↓28.9 years↑
"this card's power is equal to the number of tapped lands the chosen player controls."
Jeska's Will70%
$38.23↑#104↑1.49↑5.8 years↓
"• Add for each card in target opponent's hand."
for each card in target opponent's hand."