Blade of Selves

If the equipped creature is legendary, the tokens will all enter the battlefield. Then you'll choose one of them to remain on the battlefield. The others will be put into your graveyard. Any enters-the-battlefield or dies triggers of the tokens will work.

You choose whether each token is attacking the player or a planeswalker they control as the token is created.

Each token copies exactly what was printed on the original creature and nothing else. It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on.

The term “defending player” in the myriad rules (or any other ability of an attacking creature) refers to the player the creature with myriad was attacking at the time it became an attacking creature this combat, or the controller of the planeswalker the creature was attacking at the time it became an attacking creature this combat.

The token creatures all enter the battlefield at the same time.

If the defending player is your only opponent, no tokens are put onto the battlefield.