Jagajon's Gams

Haste, vigilance, indistructable.
When Gamsjaga Jon enters the battlefield,
attach Jagajon's Gams to it.(It becomes an Aura
spell with enchant creature. It becomes a creature
again if it's not attached to a creature.)
Enchanted creature gets +3/+3 and has haste and vigilance.
Partner (You can have two commanders if both have partner.)