Make sure you don't get hit in the cheaphole and may the mythics, the guilds, the prices, and the cards be ever in your favor, my friends!
Attack and exert the Celebrant copy, but dont attack with the original, or at least dont let it die in combat
While some cards may lose value over time due to changing tastes or oversupply, others can become even more coveted as they age
You're trying to get it dead as soon as possible, and a sac outlet like High Market can achieve that at instant speed, which can completely derail an opposing enchantment deck
Untested design waters, lets go
Throw this into some Mono-White Aggro decks, heck, even in Mono-White Auras, and the power of the deck rises immediately