Direful Doll, Ethelreda

[ACT][Drop]:If you have a grade 3 or greater vanguard with "Direful Doll" in its card name, and you do not have a rear-guard with the same card name as this card, COST [put a rear-guard into soul], and call this card to (RC).
[AUTO](RC):When this unit attacks, if you have a grade 3 or greater vanguard with "Direful Doll" in its card name, until end of that battle, this unit gets [Power] +5000, at the end of that battle, bind this unit, and draw a card. If this unit was placed on by your card's ability this turn, it gets [Power] +10000 instead of +5000. (This effect is mandatory)