I also wanted to shout out the incredible flavor text on the standard version of this card
Blue holds up mana anyway, so holding up four for Aetherize isnt much of a tribulation
All of the cards from the Duel Decks are reprints (a couple did get exclusive alternate art) but their unique set symbols should get you where you need to go
For example, when Nightveil Specter was a Standard staple, it was pushing four tickets online
Not only does Endurance interact with opposing graveyards, but against Mill, Endurance can win the game almost on its own
The rules text on cipher cards says, encoded on a creature you control, and though it might seems that means you are targeting your creature, you're not without the target language