
Companion — Your starting deck contains only cards with odd mana values and land cards. (If this card is your chosen companion, you may put it into your hand from outside the game for as a sorcery.)
If a source you control with an odd mana value would deal damage to a permanent or player, it deals double that damage to that permanent or player instead.
Obosh doubles all damage dealt by your odd-mana-value sources, turning burn, big attackers, and pingers into instant threats. You build an aggressive Rakdos deck where nearly everything costs an odd amount, then close fast by attacking or burning faces for twice the printed damage. Even as a companion you can run it as commander to guarantee the doubler is always available.
Prioritize damage multipliers (Torbran, City on Fire, Fiery Emancipation) and efficient odd-cost burn and pingers to maximize Obosh's effect. If running it as commander rather than companion, you gain access to even-cost staples like fast mana and sweepers — lean into that for consistency. Add resilient threats and recursion (Underworld Breach, repeatable burn) plus haste enablers to win before the table stabilizes.
The most-played cards for this commander, built from aggregated deck data (the Mythic Graph). Build public decks to seed it.
No combos found for this commander on Commander Spellbook.
Same color identity (BR), by popularity.