Oath of the Gatewatch

Oath of Chandra | Legendary Enchantment | | When Oath of Chandra enters the battlefield, it deals 3 damage to target creature an opponent controls. At the beginning of each end step, if a planeswalker entered the battlefield under your control this turn, Oath of Chandra deals 2 damage to each opponent. | Wesley Burt

Pyromancer's Assault | Enchantment | | Whenever you cast your second spell each turn, Pyromancer's Assault deals 2 damage to any target. | Todd Lockwood