Sokka's Boomerang

When Sokka's Boomerang enters the battlefield, if you control Sokka, you may have Sokka's Boomerang enter the battlefield attached to that creature.
Equip {2}
Equipped creature gets +1/+1 and has "Sacrifice Sokka's Boomerang: Equipped creature deals 2 damage to target creature." If equipped creature is Sokka, in instead gets +1/+1 and has "Sacrifice Sokka's Boomerang: Equipped creature deals 3 dam