Javelin of Lightning #185
Market Price
Raw
$0.18
Live eBay listings
Card Details
Flash
When this Equipment enters, attach it to target creature you control.
During your turn, equipped creature gets +2/+0 and has first strike.
Equip 
Illustrated by James Paick
Rulings (3)
Jun 10, 2022
Attaching an Equipment with its enters-the-battlefield triggered ability isn't the same as using its equip ability. You don't pay mana for the attachment, and the timing restrictions for equip abilities don't apply.
Jun 10, 2022
If the target creature becomes an illegal target, the Equipment remains on the battlefield unattached.
Jun 10, 2022
Javelin of Lightning doesn't enter the battlefield attached to a creature. Instead, the Equipment enters the battlefield and then a triggered ability attaches it to a creature. You may cast Javelin of Lightning even if you don't control any creatures.