You can make revolt active with Treasure tokens or sac effects like Ahriman, though youll be happy to kill your opponents 2-drop with it
The dies trigger isnt likely to be much, but its a 4/4 flyer for fouronly one of which is redand a Dragon to boot
1-2 Dark Ritual I would only cut these against fair decks where speed doesnt matter as much
There are a lot of ways to establish infinite loops with Emry all you need is something that untaps Emry when you cast the spell you target, like Jeskai Ascendancy, Paradox Engine, Intruder Alarm, or Mirran Spy, and a way to get whatever youre casting into your graveyard again, like the legend rule on Mox Opal or Mox Amber, or sacrificing the artifact, either to itself or something else
When a card is added to the inkwell, it stays there for the rest of the game - meaning you cant use any of the text or abilities on the front of the card once its turned into ink