This land 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 this land. : Add or . Put a depletion counter on this land.
This land enters tapped. : Add or . : Until end of turn, this land becomes a 2/2 black and red Elemental creature with ": This creature gets +X/+0 until end of turn." It's still a land.
, Pay 1 life: Add or . , : Mount Doom deals 1 damage to each opponent. , , Sacrifice Mount Doom and a legendary artifact: Choose up to two creatures, then destroy the rest. Activate only as a sorcery.
This land enters tapped. : Add or . : Until end of turn, this land becomes a 2/3 black and red Insect creature with menace. It's still a land. Whenever this land attacks, you may discard a card. If you do, draw a card.