Nesmeal, TeMyzara's Apprentice

When Nesmeal, Myzara's Apprentice enters the battlefield, you may pay {2}{u}, if you do, tap
target creature.
Whenever you attack with a creature that shares a
color with another creature you control, create a colorless artifact equipment token with equip {1} and "Equipped creature has +2/+1
and vigilance" and attach it to that creature.