High Tide 
Instant
$0.80 #803 0.68 31.8 years
Until end of turn, whenever a player taps an Island for mana, that player adds an additional .
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Bubbling Muck92%
$2.20↑#2262↓0.36↓27.2 years↓
"Until end of turn, whenever a player taps a Swamp for mana, that player adds an additional 
."
."
Zhur-Taa Ancient80%
$0.40↓#8250↓0.12↓13.3 years↓
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced."
Dictate of Karametra80%
$0.88↑#6154↓0.12↓12.3 years↓
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced."
Heartbeat of Spring78%
$2.22↑#4250↓0.54↓21.9 years↓
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced."
Mana Flare78%
$0.47↓#3297↓0.58↓33.1 years↑
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced."
Vernal Bloom74%
$4.17↑#10748↓0.31↓27.9 years↓
"Whenever a Forest is tapped for mana, its controller adds an additional 
."
."
Nikya of the Old Ways74%
$0.37↓#10535↓0.50↓7.6 years↓
"Whenever you tap a land for mana, add one mana of any type that land produced."
Snowfall72%
$0.21↓#26394↓0.36↓31.3 years
"Whenever an Island is tapped for mana, its controller may add an additional . If that Island is snow, its controller may add an additional instead. Spend this mana only to pay cumulative upkeep costs."
. If that Island is snow, its controller may add an additional instead. Spend this mana only to pay cumulative upkeep costs."
Overabundance72%
$5.52↑#9990↓0.44↓25.9 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."
Gauntlet of Might71%
$582.49↑#12361↓0.86↑33.1 years↑
"Whenever a Mountain is tapped for mana, its controller adds an additional 
."
."
Keeper of Progenitus70%
$1.84↑#14042↓0.29↓17.9 years↓
"Whenever a player taps a Mountain, Forest, or Plains for mana, that player adds one mana of any type that land produced."
Winter's Night70%
$0.87↑#29674↓0.15↓30.2 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."
Lavaleaper70%
$0.31↓#7518↓0.00↓0.6 years↓
"Whenever a player taps a basic land for mana, that player adds one mana of any type that land produced."
Zendikar Resurgent70%
$2.41↑#2336↓0.47↓10.6 years↓
"Whenever you tap a land for mana, add one mana of any type that land produced."
Mirari's Wake70%
$5.74↑#6970.6624.3 years↓
"Whenever you tap a land for mana, add one mana of any type that land produced."
Groundchuck & Dirtbag70%
$0.41↓#9259↓0.00↓0.5 years↓
"Whenever you tap a land for mana, add ."
."