Entry 407

Whenever you cast an artifact, create a
1/1 colorless thopter with flying.
As long as you control 4 or more thopters,
Entry 407 gains trample and
" {5}{t}; search your library for an artifact and
put it into your hand, shuffle your library
afterwards."
"It's purpose? Unknown. Who entered it?
Unknown. All we know is it will win."