Shruikan, Harbinger's Wrath

Flying, haste, first strike, trample, deathtouch
whenever a Dragon creature enters the battlefield
under your control, Shruikan deals damage to
target creature equal to the number of dragons
you control
{4}{b}{r} Shruikan deals 7 damage to any target,
if you control 7 or more dragons, it deals 14
damage instead