[AUTO](RC):When this unit attacks a vanguard, if your vanguard is
Legion
, and it is the first battle of that turn, this unit gets [Power]+3000 until end of that battle, and at the end of that battle, choose another of your other rear-guards in the same column as this unit, and exchange positions with this unit. (The state of the cards does not change)
This unworthy one has the honor of serving as the vanguard!