Relic Axe

Text:

When Relic Axe enters the battlefield, attach it to target creature you control.
Equipped creature gets +1/+1. If it's a Warrior, it gets +2/+1 instead.
Equip

Rulings:

• 9/25/2020 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 if the Equipment enters at a time you couldn’t cast a sorcery, you can still attach it to a creature you control.
• 9/25/2020 If the target creature becomes an illegal target, the Equipment remains on the battlefield unattached.