In decks that double up on upkeep triggers like The Prismatic Bridge, you will likely need to be rolling for Mana Crypt damage multiple times in a turn
Is your community buzzing with excitement over Modern Horizons 3
Round 3...disruption would give you second or third place finishes, and the best decks were the ones that go big A 5/5 flying demon was hard for some decks to kill, and even if you could kill it, Ob Nixils himself might live long enough to make another
They also have great synergy with Seedborn Muse, allowing you to earn extra mileage out of untap steps without spending cards
It also has loads of very cheap low value cards so flooding is pretty devastating
Basically, the less established your board state the less likely you are to have a great target for your auras, and the more it will hurt if your opponent removes that target with an aura on the stack