Raed, Street-Smart Urchin

When Raed, Street-Smart Urchin deals damage to
a player, look at the top 5 cards of your library.
You may cast one artifact from these cards, either
paying its listed mana cost or paying {u}{u}{u}. Then,
put the rest of the cards on the bottom of your
library in a random order.
You may equip one equipment per turn to Raed,
Street-Smart Urchin for {0}. Activate only as a
sorcery.