Spark of the Passionate

Flash
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Hexproof
Enchant creature
When Spark of the Passionate enters the battlefield, put 2 loyalty counters on enchanted creature.
Enchanted creature gains "+1: Target creature gains haste and +2/+0 until end of turn.", "−X: Enchanted Creature deals X damage to any target.", and is a legendary planeswalker in addition to its other types.