As an additional cost to cast this spell, blight X. X can't be greater than the greatest toughness among creatures you control. (Put X -1/-1 counters on a creature you control.)
Soul Immolation deals X damage to each opponent and each creature they control.
$8.99 $5.39
$10.00 $5.00
$13.00 $8.00
$23.00 $13.80
$62.00 $31.00
$9.00 $5.40
$78.00 $39.00
$12.99 $7.79