To capture this sense of present, past, and alternate present, I came up with the idea of using morph and adapting it for the past and the alternate present
Light-Paws, Emperor's Voice A good aura Light-Paws, Emperor's Voice is a two-mana White 2/2 that reads: "Whenever an Aura enters the battlefield under your control, if you cast it, you may search your library for an Aura card with mana value less than or equal to that Aura and with a different name than each Aura you control, put that card onto the battlefield attached to Light-Paws, Emperors Voice, then shuffle." This is undoubtedly going to be an almighty card in Commander but, given how potent the ability is, we wouldnt be surprised to see this at the forefront of an aggressive aura deck in other popular MTG formats too
This makes using trackers, such as coins or dice , very important
Well, it's powerful to use on paper, but it's technically illegal to use in tournament play