Dr. Octopus, Worldmerger

When Dr. Octopus, Worldmerger enters the
battlefield, create X 1/1 Tentacle artifact creature
tokens with "This can't attack or block alone".
Sacrifice four artifacts or creatures: Choose up
to four creature or artifact cards you own from
outside the game, reveal them and shuffle them
into your library.
"The collider will bring your family back.
As many families as you want."