Mana Geyser 
Sorcery
$0.77 #290 0.90 22.4 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%
$0.53↓#8867↓0.45↓21.4 years
"Add for each card in your hand."
for each card in your hand."
Seething Song83%
$9.00↑#2990.56↓23.0 years
"Add ."
."
Battle Hymn82%
$1.80↑#1658↓0.36↓14.5 years↓
"Add for each creature you control."
for each creature you control."
Pyretic Ritual82%
$6.03↑#709↓0.34↓16.3 years↓
"Add ."
."
Dragon's Desire81%
$1.48↑#12750↓0.36↓0.2 years↓
"Add for each artifact your opponents control."
for each artifact your opponents control."
Infernal Plunge81%
$0.41↓#3044↓0.38↓15.1 years↓
"Add ."
."
Channel the Suns81%
$0.70↓#16911↓0.00↓22.4 years
"Add 
."
."
Blazing Firesinger // Seething Song80%
$0.38↓#5014↓0.05↓0.5 years↓
"Add ."
."
Mana Seism80%
$0.21↓#21953↓0.06↓22.1 years
"Sacrifice any number of lands, then add that much 
."
."
Cabal Ritual77%
$14.93↑#442↓0.54↓24.7 years↑
"Add ."
."
Geosurge74%
$4.06↑#6161↓0.71↓15.4 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%
$5.07↑#646↓0.30↓20.2 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%
$6.11↑#950↓0.30↓22.1 years
"Add ."
."
Culling the Weak71%
$7.45↑#502↓0.73↓28.3 years↑
"Add ."
."
Seismic Spike70%
$0.17↓#16883↓0.8121.0 years↓
"Destroy target land. Add ."
."
Dark Ritual70%
$0.25↓#33↑0.65↓33.2 years↑
"Add ."
."
Pallimud70%
$0.42↓#30810↓0.36↓29.0 years↑
"this card's power is equal to the number of tapped lands the chosen player controls."
Jeska's Will70%
$39.69↑#107↑1.56↑5.9 years↓
"• Add for each card in target opponent's hand."
for each card in target opponent's hand."