Temple Ghast

Extort (Whenever you cast a spell, you may pay{u/b}. If you do each opponent loses 1 life and you gain that much life).
Whenever you tap a Subterranean Basic Land for mana, add another of that mana type to your mana pool(In addition to the mana that land produced).
Below the sacred temple lies the catacombs of the dead,
Upon stone beds of worn marble and bare thread.
Only a fool would disturb those unsleeping ranks,
Enslaved to Lolth, Dr