In addition to getting 2 traditional foil mythic rares in each Commander deck, Collector Boosters can have 1 of the 8 mythic rares in this slot in non-foil (8.93%) or traditional foil (8.5%)
You can then sacrifice an artifact and pay four mana to fling the artifact to an opponent, dealing damage equal to that artifacts mana value
With Tarkir: Dragonstorm recently released, I want to talk about one of my most favorite decks now, Mono Red Dragon Tribal with Inferno of the Star Mounts
With 13 non-inkable cards, this deck is at risk of stalling out early if you get an unlucky draw
While the effect is simple on its face, it opens up a lot of possibilities in the right situations, stopping your opponents from using that characters powers requiring exertion or questing or challenging with them for another turn
Premium boosters are set-specific and follow their own rules, but Standard boosters have specific context structures