Sylvan Horned Beast King of Calamity, Magnolia Masques

[CONT]:This card can only be ridden from a grade 3 card with "Magnolia" in its card name. [CONT](VC):During your turn, all of your rear-guards on (RC) with a Dragontree marker can attack from the back row, and get [Power] +10000. [ACT](VC)[1/turn]:[COST][Remove a card with "Magnolia" in its different card name from this unit from hand, soul, or drop], and this unit gets "[AUTO](VC):When your rear-guard attacks a vanguard from the back row, choose one of your opponent's rear-guards, and retire it." until end of turn.