Because the last ability causes Monument to Perfection to lose all the abilities, activating it multiple times before the first activation resolves does not result in it having multiple instances of toxic 9
While the drawback can matter in cube, especially since cards like Ring of Gix and Staggershock that can target it without using a card are used more often, the fear of the drawback mattering is more than the actual drawback
Yellow Enel 1xOP05-098 4xEB01-056 4xOP03-116 4xOP03-123 4xOP04-100 4xOP04-112 2xOP05-100 4xOP05-102 4xOP06-101 4xOP07-107 4xOP07-109 4xOP07-119 4xEB01-059 4xOP06-115 Yellow Enel is one of the top choices in tournaments and it should remain a great choice with the ban of Red Purple Law
eBay eBay is one of the most popular places to sell Magic cards and full collections, even though it isnt dedicated to MTG
Why Is Force of Will Banned in MTG Historic
By the way, if you're feelin' lazy, put Terra, Magical Adept / Esper Terra through its trance or untap Timeless Lotus or Jegantha, the Wellspring and you'll be set to sacrifice that door
