Well considering the name I gave the card, I don't think a Black Rose-related effect would work...how about this?
"All face-up Plant-type monsters gain 300 ATK and DEF. Once per turn, you may remove from play one Plant-type monster in your Graveyard to destroy one card in your opponent's Spell & Trap Card Zone."
"All face-up Plant-type monsters gain 300 ATK and DEF. Once per turn, you may remove from play one Plant-type monster in your Graveyard to destroy one card in your opponent's Spell & Trap Card Zone."