Avatar of the Planes

Changeling (This card is every creature type.)

All other creatures you control have double strike.

Avatar of the Planes' power and toughness are each equal
to your life total.

When Avatar of the Planes is put into a graveyard from anywhere, shuffle it into its owner's library.

"I am the echo of every soul born, the pulse of every world.
I am the spark of life across the multiverse."