Lavaleaper {3}{R}
Creature — Elemental
All creatures have haste.
Whenever a player taps a basic land for mana, that player adds one mana of any type that land produced.
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Cards that do something similar 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.
Zhur-Taa Ancient 98%
$0.35#8205
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced."
Dictate of Karametra 98%
$0.89#6083
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced."
Heartbeat of Spring 98%
$3.64#4242
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced."
Mana Flare 98%
#3284
"Whenever a player taps a land for mana, that player adds one mana of any type that land produced."
Overabundance 95%
$5.45#9965
"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."
Barbflare Gremlin 92%
$0.28#7937
"Whenever a player taps a land for mana, if this creature is tapped, that player adds one mana of any type that land produced. Then that land deals 1 damage to that player."
Regal Behemoth 86%
$0.37#2376
"Whenever you tap a land for mana while you're the monarch, add an additional one mana of any color."
Nikya of the Old Ways 84%
$0.33#10303
"Whenever you tap a land for mana, add one mana of any type that land produced."
Vorinclex, Voice of Hunger 84%
$13.79#1783
"Whenever you tap a land for mana, add one mana of any type that land produced."
Zendikar Resurgent 84%
$2.55#2259
"Whenever you tap a land for mana, add one mana of any type that land produced."
Mirari's Wake 84%
$6.72#680
"Whenever you tap a land for mana, add one mana of any type that land produced."