Chandra, Fire of Kaladesh // Chandra, Roaring Flame

Whenever you cast a red spell, untap Chandra. {T}: Chandra deals 1 damage to target player or planeswalker. If Chandra has dealt 3 or more damage this turn, exile her, then return her to the battlefield transformed under her owner's control. +1: Chandra deals 2 damage to target player or planeswalker. −2: Chandra deals 2 damage to target creature. −7: Chandra deals 6 damage to each opponent. Each player dealt damage this way gets an emblem with "At the beginning of your upkeep, this emblem deals 3 damage to you."