Obosh, the Preypiercer ( Foil ) (Prerelease) ★★★★★

Companion — Your starting deck contains only cards with odd converted mana costs and land cards. (If this card is your chosen companion, you may cast it once from outside the game.)
If a source you control with an odd converted mana cost would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.