Krumiir, Lord of the Mountains

{w}{t}, Sacrifice a Dwarf you control: search your library for an artifact card with the Aeshea subtype, reveal it, and put it into your hand. Then shuffle your library.
Krumiir gets +0/+X, where X is the number of Aeshea artifacts you control.
Krumiir gets +X/+0, where X is the number of untapped mountains you control.