Legendary Planeswalker — Chandra
+1 : Add
. Chandra, Dressed to Kill deals 1 damage to up to one target player or planeswalker.
+1 : Exile the top card of your library. If it's red, you may cast it this turn.
−7 : Exile the top five cards of your library. You may cast red spells from among them this turn. You get an emblem with "Whenever you cast a red spell, this emblem deals X damage to any target, where X is the amount of mana spent to cast that spell."
Chandra's last ability, by contrast, only allows you to cast spells that are red when you cast them, no matter what the card in exile is. If Rowan, Scholar of Sparks is exiled by this ability, you won't be able to cast Will, Scholar of Frost this way because it would be a blue spell.