Chandra, Flame of Freedom

+1: Do 1 damage to any target. If it is a player or planeswalker, deal 1 additional damage. If it is a creature, it cannot block until end of turn.
0: Deal 3 damage to any target. As you draft Chandra, Flame of Freedom from a spellbook, you may reveal it and activate this ability.
-4: Deal 4 damage to all other creatures, players and planeswalkers.