Gaozuit's Kindling Wrath

(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.)
Exile the top ten cards of your library. Gaozuit's Kindling Wrath deals damage to each player equal to the highest converted mana cost among cards exiled this way. If this damage would reduce your life to less than 1, it reduces it to 1 instead and each opponent whose life total is reduced to less than 10