I've been inspired by the Invasion of Alara modern decks I've seen lately to try it out in the cube. We already have Felidar Guardian which works really well with Invasion and now its just a matter of swapping out Trigger Happy for Vampire Hexmage (both of which work with Dark Depths) for the combo. I'm not 100% sold on this given that Invasion really isn't a playable card IMO without Hexmage but definitely worth trying out!

From there I realized that Aminatou works like Felidar Guardian with Invasion and that also Aminatou goes infinite with Felidar plus Altar of the Brood. And then I realized Altar goes infite with a ton of stuff in the cube.