Equip

Equip is an activated ability that lets you attach an equipment to one of your creatures. It can be played at Sorcery speed.

Comprehensive Rules
702.6. Equip

702.6a Equip is an activated ability of Equipment cards. “Equip [cost]” means “[Cost]: Attach this permanent to target creature you control. Activate this ability only any time you could cast a sorcery.”

702.6b For more information about Equipment, see rule 301, “Artifacts.”

702.6c If a permanent has multiple instances of equip, any of its equip abilities may be activated.