Eriette, the Beguiler popped up in a search and I kinda just blanked on it for a few seconds trying to understand if it's actually in Standard or not. I can understand why I didn't notice it before, but there's something sneaky about it.
Might be worth a try to see what kind of deck can be built around her. Probably will just be jank though.
Pretty much once Eriette is out you cast your auras on your opponent's permanents and take control of them. Limited to mana value so you're on the clock to get control of the game before the 6-drops come out. Once you yoink the permanent, you keep it even if Eriette goes away later. You only lose it when the aura goes away.
Biggest mana value aura that is half-playable is probably Astral Wingspan as a convoke 5-drop. Draws a card too.
Pretty much dealing with 3-drop auras otherwise.
Zoetic Glyph grabs 3-drop-or-less artifacts. Maybe you can Get Lost a threat then yoink one of the maps with your Glyph.
Careful Cultivation grabs 3-drop-or-less creatures and gives you extra mana ramp. You can Channel out a mana dork if you're caught on low lands.
Cathar's Call gets you some grind power.
Asinine Antics is a janky sweeper but any token creatures get yoinked. Can be cast at instant speed.
Leyline Immersion is a funky anti-legend play. If it grabs me a Sheoldred, the Apocalypse one time it's worth it.
Other than auras, I'm running a Novice Inspector Spyglass Siren Subterranean Schooner Restless Anchorage package to support the Glyph.
To deal with the hard color requirements I'm going filter lands from deserts (Conduit Pylons Bucolic Ranch) and caves (Captivating Cave Forgotten Monument) instead of the super costly dual lands. With the caves I'm going Volatile Fault Conduit of Worlds to put pressure on opponent's mana base if they went greedy with it. Conduit helps recast auras too so you don't have to hold them back early if you have the opportunity to give a 1-drop creature some mana ramp action.
