Artifact — Equipment
Equipped creature has myriad. (Whenever it attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)
Equip
If the tokens aren't creatures (perhaps because the equipped creature was an animated land), they'll enter the battlefield but they won't be attacking. You'll still exile those tokens at end of combat.