Karlach, Fury of Avernus Revised Edition you may cast a copy

you may cast a copy of it from exile without paying its mana cost at the beginning of each of your first main phases

Inside Dual Matte sleeves you will discover a fully opaque

{4}{B}{B}: Each opponent with no cards in hand loses 10 life

you may draw cards equal to the number of opponents dealt damage this way

Back Face: Valakut Stoneforge

Karlach, Fury of Avernus Revised Edition you may cast a copyWhenever you attack, if it's the first combat phase of the turn, untap all attacking creatures. They gain first strike until end of turn. After this phase, there is an additional combat phase. Choose a Background (You can have a Background as a second commander.)