For example, on my list of perennials, if you will, are G/U Infect, Sultai Infect, U/W Flash, several Grixis variants, my B/G Obliterator deck, three versions of Burn, my Ojutai Control deck, and then more fringe decks like five versions of Allies, Prison, and others
Since The Cloning of Shredder exiles a card from the graveyard, you never have to worry about paying the mana cost of the creature that you're cloning
Building out a typal deck using sub-optimal cards is one of the most rewarding experiences in Commander and really lets you zero in on some cards that dont often see the light of day
This allows your Knights to even get around wrath effects for at least one combat
But more on that later, long story short, this is a great time to pick up chase cards