This puzzle was originally published on Dec 24, 2016, and features as much christmas cheer as a magic puzzle is capable of. It begins in your first main phase, and your goal is to win this turn.
Player
1 Life
Hand: Aurochs Herd, Relic of Progenitus, Exhume, Act of Treason, Burst of Speed
Lands: Snow-Covered Forest x3, Snow Covered Mountain x4, Snow-Covered Swamp x1
Board: Aurochs Herd
Graveyard: Aurochs Herd, Fume Spitter
Library: Skred
Opponent
10 Life
Field: Aurochs Herd (-1/-1 counter)
Graveyard: Shu Soldier-Farmers, Snow-Covered Swamp
Solution
1. Play Relic of Progenitus, activate it to exile all graveyards and draw Skred
2. Skred the opponent’s Aurochs Herd
3. Cast Exhume – opponent returns Aurochs Herd, you return nothing
4. Cast Act of Treason on the opponent’s Aurochs Herd
5. Swing with your Aurochs for 10