Durnan, Last Stonehearder

When Durnan, Last Stonehearder enters the
battlefield, you may search your library for a
Mountain card, put that card onto the
battlefield tapped, then shuffle.

{4}{r/g}{r/g}: Create an X/X red and green Elemental
creature token, where X is the number of lands in
all graveyards.

"From the depths of the earth, he mends the broken
and breathes life into the forgotten."