Lavaleaper

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

First strike, haste

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.

You can't cast noncreature spells.

Whenever you tap a land for mana, add one mana of any type that land produced.

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.

When this creature enters, choose a player. That player adds two mana of any one color they choose.