Havenwood

Shroud, Indestructible
At the beginning of each end step, put a Sprawl
counter on Havenwood. At the end of each turn
you lose 1 life for each Sprawl counter on it.
For the first green spell you cast each turn, you
must remove enough Sprawl counter from
Havenwood to reduce the color portion of that
spell's cost by {g} each. If you can't remove
enough counters for a spell, remove all instead.