Dwaren, Mountain Miner

At the beginning of your upkeep reveal the top
card of your library. If it's a mountain card put it
into your graveyard, otherwise put it back on top
of your library. Whenever a land card is put into
your graveyard from your library, create a gold
token and deal 1 damage to each opponent.
{r}{r},{t}, Sacrifice an artifact: Search your
library for a mountain card and put it into your graveyard.
{4},{ut}: Dwaren deals 1 damage to you.