Pyromancer's Aptitude

Split Second (As long as this spell is on the stack, players can't cast spells or activate abilities that
aren't mana abilities.)
When this spell resolves, Pyromancer's Aptitude deals 2 damage to each opponent.
Splice onto Chandra {0} (As you cast a Chandra spell, you may reveal this card from your hand and
pay its splice cost. If you do, add this card's effects to that spell.)