You can also use cards that let you cast from the top of your library, like Magus of the Future and Melek, Izzet Paragon
Theyre thematic, so a given collection can pair allies, cabbages, freedom fighters, spirits, waterbending, or simply Azula
Its a huge Flier, a double removal spell, a draw spell, and a huge damage chunk all in one
Optimizing for this one requires some highly specific stuff, but it does come at a solid rate on its own and most Cubes will have some other artifact creatures to spread the love around
When combined, there are possibilities for players to create powerful card combinations that can devastate their opponents
I'm a big fan of Bedlam RevelerBedlam Reveler as a bit of a bigger spells-matter creature suited for long games