We Are Legion

Flying
{t}, Sacrifice up to 4 artifacts: For each artifact
sacrificed this way, put a +1/+1 counter on this.
Whenever this is being dealt damage, remove
that many +1/+1 counters from this instead and
for each counter removed that way create a 1/1
colorless Thopter creature token with flying.
Sunburst, modular 1