Asishi, Boros High Aristocrat

Batallion - You may only activate this ability if you attacked with a creature this turn. {t}: Draw a card. You may then have it deal 1 plus X damage to target creature or player, where X is the card's converted mana cost. If you do, you lose X minus 1 life.
"Her only advice seems to be,'War!' I think she's on to something." -Aurelia, the Warleader