Excavation Tunnel

At the beginning of your upkeep, exile target
card from a graveyard. If a nonland card is exiled
this way, add {c} or one mana of any of that card's
colors. You don't lose this mana as steps and
phases end.
{5}, Sacrifice Excavation Tunnel: Put all land
cards exiled with it into the battlefield tapped
under your control.