Does Relentless Pursuit require paying the equip cost when it attaches an equipment?

Ruling: No, Relentless Pursuit does not require paying the equip cost. The card uses "attach" rather than "equip."

Nuances:

• Equip is an activated ability that has a cost and produces the effect of attaching
• Attach is the result of equipping, but attaching itself does not require the equip cost
• When a card says "attach" it bypasses the equip cost entirely