Mighty Orbots

Flying Haste First Strike Trample Menace
Whenever Mighty Orbots is put onto the battlefield, your opponent must sacrifice all creatures whos power and toughness are 3/3 or less.
{1}{b}All creatures of 4/4 or more take -1/-1 until end of turn.
Whenever Mighty Orbots is attacked or blocked, Mighty Orbots gets +1/+1 until end of turn.
If Mighty Orbots is killed, sacrifice Mighty Orbots, when you sacrifice Mighty Orbots you get five 1/1 Orbot artifact creatures with Flying.