Hollow Coastline

{t}: Add {u} to your mana pool, then put a crumble counter on Hollow Coastline
If at any time Hollow Coastline would have 3 or more crumble counters on it, shift Hollow Coastline.
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(Shifted form of Hollow Coastline)
{t}: Add {b} to your mana pool, then each player loses 1 life.