Nahiri's Wrath

Oracle Text
As an additional cost to cast this spell, discard X cards.
Nahiri's Wrath deals damage equal to the total converted mana cost of the discarded cards to each of up to X target creatures and/or planeswalkers.
Card Rulings
7/13/2016 Nahiri’s Wrath adds the converted mana costs of the discarded cards in whatever zone they were put into as a result of being discarded, even if they weren’t put into a graveyard (due to madness, for example) or are no longer in that zone.
7/13/2016 The damage is not divided. Nahiri’s Wrath will deal that much damage to each target.
7/13/2016 You can’t target the same creature or planeswalker multiple times to deal more damage to it.
7/13/2016 If you discard a card with in its mana cost, X is considered to be 0.
7/13/2016 If you cast Nahiri’s Wrath without paying its mana cost, you’ll still choose a value for X and discard X cards.
7/13/2016 If you copy Nahiri’s Wrath, it has the same number of targets and deals the same amount of damage as the original spell.
This card is meant for reanimation, dredge and delirium strategies more than madness.