Koth, Fire of Resistance (Store Championship Promo, Foil)

'[+2]: Search your library for a basic Mountain card, reveal it, put it into your hand, then shuffle.
[−3]: Koth deals damage to target creature equal to the number of Mountains you control.
[−7]: You get an emblem with "Whenever a Mountain you control enters, this emblem deals 4 damage to any target."