Xeno'jiiva, Creator of Dragons

Flying
Element: Fire, Dragon
When Xeno'jiiva comes into play, destroy all
non-Elder Dragons.
Xeno'jiiva comes into play with {x} +1/+1
counters. Remove a +1/+1 counter from
Xeno'jiiva at thebeginning of each of your
upkeeps. If there are no +1/+1 counters on
Xeno'jiiva, sacrifice it.