This is a deck that I built around the Unhinged card, Topsy Turvy, which reverses the phases of each turn. I use it in an infinite turn combo that ideally comes out on turn five.

4 Carnivorous Death-Parrot
3 Cheatyface
4 Ninja of the Deep Hours
4 Temporal Adept

4 Umbilicus
4 Remand
3 Spell Counter
4 Number Crunch
4 Loose Lips
4 Topsy Turvy

2 Hall of the Bandit Lord
20 Island

I use Umbilicus or Temporal Adept to bounce Topsy Turvy back to my hand during my upkeep (which is at the end of my turn) to make my turn go forwards again. Then during my postcombat main phase I play Topsy Turvy again to switch the turn back into reverse. This process repeats ad infinitum, or until I win, preferably the latter. Note that I don't skip the untap or draw step because it only reverses phases, not steps.

I've got some cheap 2/2 flyers (Cheatyface and Carnivorous
Death-Parrot) that can turn into a Ninja of the Deep Hours early game,
or simply provide damage each turn. The Ninja helps draw into my combo
and works well with Loose Lips when given flying. Loose Lips is there
to take advantage of Number Crunch, Spell Counter, and Ninja of the
Deep Hours, and because it happens to be my favorite card. Remand
stalls, counter-bounces, and helps draw into the combo. Hall of the
Bandit Lord allows me to play creatures during my final infinite turn
without having them be stuck with summoning sickness forever, since
the turn loops but never ends. Number Crunch and Spell Counter are
Gotcha cards, which add to the Unhinged-y atmosphere of the game as
well as being more reusable & fun than their counterparts, Boomerang
and Counterspell.

If you could help with this deck, I'd really appreciate it. Thanks!

~Jasper Lawrence