You can not activate it during your opponent's turn, and while it is face-down on the field it is vulnerable to being destroyed by "Mystical Space Typhoon", etc
Illustrated by Leonardo Santanna Standard Not Legal Alchemy Legal Pioneer Not Legal Historic Legal Modern Not Legal Brawl Legal Legacy Not Legal Comp
Mass Lifegain with Creatures These almost didn't make the list, but Divine Congregation, Renounce and Peach Garden Oath, require so few other creatures to work, you just might pull it off
If the card is banished, Drei can target a Cyber Dragon on the field and make it immune to destruction from battle and card effects for the rest of the turn, making that monster a pretty much invincible beatstick
Keep your game cards safe from damage caused by dirt, spills, sticky fingers and moisture so you can continue building the vast kingdom you have always wanted
On September 12, when the update to the Forbidden and Limited List was announced, sales of the QCSR version of Harpies Feather Storm jumped to their highest point all year