Hirarks Familiar

Trample, Vigilance, Doublestrike, Flying,
When this card comes into play all your
creatures with flying gain a +2/+2
counter until it dies.
{4}{r}{r}: When an artifact or enchantment is
played under your control you can summon a 4/4 dragon with flying and trample.
"Nothing has yet been able to stand against this monstrosity."—FoxTain the Wanderer