Toopchi, Mercenary Gunner

Haste
{1}, {t}, Discard a nonland card: Toopchi deals
damage to target creature or planeswalker equal
to the discarded card's mana value. Activate only
as a sorcery.
Amid their ranks I saw her: the Toopchi, their
Cannoneer, advising in the use of these foreign guns.
Even the enemy looked wary of her as she worked her
craft, her hair pulled back and cloth in her ears to
muffle the blast of exploding powder.