Undead Reinforcements

On you endstep, create your choice of a 1/3
skeleton token, a 3/1 zombie token, or a 1/1
ghost token with reach for each that apply:
•Any opponent has 3 or more nontoken creatures
than you
•You lost over half your health
•At least 3 creatures you control died
{bull}A spell you don't control targeted a artifact you control