Bludgeon Buffalo (DZ-BT12/040EN) [Chasm of Lost Souls]

[AUTO](RC):When this unit attacks, if you have a grade 3 or greater vanguard with "Skyruler" in its card name, this unit gets [Power]+5000 until end of that battle. If your drop has fifteen or more cards, and this unit [Stand] by your vanguard's ability this turn, it gets [Power]+15000 instead of +5000. [AUTO](RC)[1/Turn]:When this unit [Stand] by the ability of your grade 3 or greater vanguard with "Skyruler" in its card name, if you do not have another rear-guard with the same card name as this unit, and you persona rode this turn, this unit gets [Critical]+1 until end of turn.