Magic: the Gathering - Datenbank
Eiszeit
Lava Tubes
Land

Lava Tubes doesn't untap during your untap step if it has a depletion counter on it.
At the beginning of your upkeep, remove a depletion counter from Lava Tubes.
[T]: Add [B] or [R] to your mana pool. Put a depletion counter on Lava Tubes.
Nr:339