Avalanche Riders (TSB 55)

Creature — Human Nomad • Mana cost: {3}{R} • Time Spiral Timeshifted • Special

Haste
Echo {3}{R} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When this creature enters, destroy target land.

Illustrated by Edward P. Beard, Jr..