Being able to steal all of your opponents' artifacts with it is a great bonus, but with Odric's Blood, and Surly Badgersaur and Dockside Extortonist's Treasures, it wouldn't be too difficult to get to that number on your own
Timing permissions based on the card's type are ignored, and the spell will resolve before blockers are declared
Worst case however this gets killed or bounced and they get their Gearhulk/Titan etc back plus another EtB trigger and you lose
Across 70 levels (rather than the usual 80), you can earn: One avatar Two sleeves Three pets 23 cards 25 Card Styles 47 Booster Packs 1200 Gems 4000 Gold Everything In The March Of The Machine Mastery Tree In the Mastery Pass, you will sometimes unlock Mastery Orbs
A constantly growing car that also exiles cards until its owner decides to recast it again is solid but takes too much time to grow
Each has a table to describe what result the roll will get you, often with a nice bonus for managing to roll that natural 20