Bubbling Muck 
Sorcery
$2.75 #2210 0.45 27.4 years
Until end of turn, whenever a player taps a Swamp for mana, that player adds an additional .
.Click a line or tag to filter
Cards similar to Bubbling Muck 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.
High Tide92%
$0.88↓#798↑0.57↑32.0 years↑
"Until end of turn, whenever a player taps an Island for mana, that player adds an additional 
."
."
Pyre Rhymer // Molten Tide86%
$0.33↓#16795↓0.18↓0.0 years↓
"Until end of turn, whenever you tap a Mountain for mana, add an additional 
."
."
Nirkana Revenant84%
$7.45↑#2963↓0.3716.5 years↓
"Whenever you tap a Swamp for mana, add an additional ."
."
Zhur-Taa Ancient83%
$0.33↓#8336↓0.00↓13.5 years↓
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced."
Crypt Ghast80%
$12.63↑#522↑0.65↑13.7 years↓
"Whenever you tap a Swamp for mana, add an additional ."
."
Nikya of the Old Ways75%
$0.33↓#10750↓0.24↓7.7 years↓
"Whenever you tap a land for mana, add one mana of any type that land produced."
Dictate of Karametra74%
$0.79↓#6270↓0.12↓12.5 years↓
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced."
Vernal Bloom74%
$4.27↑#10957↓0.35↓28.0 years
"Whenever a Forest is tapped for mana, its controller adds an additional 
."
."
Mana Flare74%
$0.53↓#3340↓0.3633.2 years↑
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced."
Heartbeat of Spring74%
$2.32↓#4288↓0.3922.1 years↓
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced."
Overabundance74%
$5.67↑#10117↓0.59↑26.0 years↓
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced, and this enchantment deals 1 damage to the player."
Winter's Night72%
$0.84↓#30098↓0.06↓30.4 years↑
"Whenever a player taps a snow land for mana, that player adds one mana of any type that land produced. That land doesn't untap during its controller's next untap step."
Gauntlet of Might72%
$600.00↑#12421↓0.18↓33.2 years↑
"Whenever a Mountain is tapped for mana, its controller adds an additional ."
."
Keeper of Progenitus72%
$2.10↓#14251↓0.31↓18.0 years↓
"Whenever a player taps a Mountain, Forest, or Plains for mana, that player adds one mana of any type that land produced."
Lavaleaper71%
$0.30↓#7103↓0.25↓0.7 years↓
"Whenever a player taps a basic land for mana, that player adds one mana of any type that land produced."
Tainted Wood71%
$0.30↓#445↑0.07↓24.7 years↓
"
: Add or . Activate only if you control a Swamp."
: Add or . Activate only if you control a Swamp."
Tainted Peak71%
$0.73↓#498↑0.04↓24.7 years↓
": Add or . Activate only if you control a Swamp."
: Add or . Activate only if you control a Swamp."
Wolfwillow Haven70%
$0.18↓#4995↓0.00↓6.7 years↓
"Whenever enchanted land is tapped for mana, its controller adds an additional ."
."
Mirari's Wake70%
$3.05↑#713↑0.67↑24.4 years↓
"Whenever you tap a land for mana, add one mana of any type that land produced."
Extraplanar Lens70%
$12.94↑#1695↑0.18↓23.0 years↓
"Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced."