Offensive defense
Drawing a card whenever you cast a spell with mana value 5 or greater is excellent with sweepers like pre-rotation Sunfall, where you can kill every creature and draw a card, with removal spells like Leyline Binding, or with the various Overlords that can enter the battlefield for cheap via impeding, like Overlord of the Hauntwoods
And because you have a higher guarantee of getting rare cards from boxes, that can make collecting Japanese cards a better investment
Double strike makes it easy to attack since blocking becomes a nightmare and saboteur effects like Araa, Heart of the Spider benefit from dealing combat damage twice
The Spatula of the Ages look fancy, and apparently Urza uses this to make pancakes
Tergrid's Lantern in EDH is very powerful if you need a mana sink, and it gets ridiculous with cards like Nykthos, Shrine to Nyx or Cabal Coffers