Flash As this Equipment enters, choose a creature you control it could be attached to. If you do, it enters attached to that creature. Equipped creature gets +1/+1. Equip {1}
This creature must be blocked by exactly one creature if able. Whenever this creature attacks, create X tokens that are copies of it and that are tapped and attacking, where X is the number of creatures defending player controls. Exile the tokens at the beginning of the next end step.
When this creature enters, you may pay {X}. If you do, search your library for an Equipment card with mana value X or less, put that card onto the battlefield, then shuffle.