Duo Sweet Rhythm, Vilaine (Black)

[AUTO](VC) Limit Break 4 (This ability is active if you have four or more damage):When this unit attacks a vanguard, this unit gets [Power]+5000 until end of that battle.
[AUTO]:[Counter Blast (2)] When this unit is placed on (VC), you may pay the cost. If you do, draw 1 card, choose up to one of your «Bermuda Triangle» rear-guards, and return it to your hand.