[+1]: Create two 3/1 red Elemental creature tokens with haste. Exile them at the beginning of the next end step.
[0]: Discard all the cards in your hand, then draw that many cards plus one.
[−X]: Chandra, Flamecaller deals X damage to each creature.
For Chandra’s second ability, it doesn’t matter if the cards don’t go to your graveyard because of a replacement effect. For example, cards with madness discarded this way will still count toward the number of cards you discarded.
You can activate Chandra’s second ability while you have an empty hand. If you do, you’ll draw one card.