With the release of fetchlands and Dredge and more potent self-mill cards, it became trivial to achieve Threshold, so Wizards had to move away from the simple fill the yard for significant benefit model in Shadows over Innistrad with Delirium
You can spend most of your mana deploying a board, then use those creatures to pay for Obelisk
The secure latch closure, natural walnut wood grain finish, and portable design make it perfect for FNM, tournaments, and casual games
2020-11-10 Youll still pay all costs for a spell cast this way, including additional costs
You cant beat 1 blue mana
Mishras Bauble is a bit more specific than a lot of my entries in this series, but the card supports a fairly wide range of things and exemplifies what I like in a colorless spell very well