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Escolha um. Se você controla um comandante conforme conjura esta mágica, você pode escolher ambos.
• O jogador alvo compra X cards.
• O jogador alvo tritura duas vezes X cards.
You may target the same player with both modes or target different players. The effects happen in the order they're listed on the card.
Controlling a commander means that you control a permanent on the battlefield that is someone's commander. It can be yours or another player's. Controlling a commander spell on the stack will not allow you to choose both modes.