Leonis, Tiger Sage of the Star

Vigilance
Put X amount of Nature Energy counters on this creature, where X is the amount of plains you
control minus 3. At the beginning of your
upkeep, remove a counter. When all counters
have been removed, transform Leonis.
{w}{w}, {t}: Deal 7 damage to target creature or
player and destroy target land. Remove a Nature
Energy counter.