As a proxy it looks amazing in my commander deck. Scott Fuller This card is the bomb
All these options are significantly less expensive than buying Cyclonic Rift, and they come with various advantages: they're cheaper to cast, they deal with permanents permanently, and as artifacts they can be tutored up easier with cards like Whir of Invention
Thought-Knot Seer Thought-Knot Seer is also a huge reason to play Eldrazi, considering that the deck folds to specific interactions and you can strip them from your opponents hand
Free sacrifice fodder every turn
If you're able to use this Ajani's -7 ability, it offers a stellar defensive benefit that reduces all damage you and Planeswalkers would take to one, mitigating the threat of even the scariest of creatures, and direct damage spells.
And should we all go back to saying Dega as a bit