C. Falcon, not only is that Cress set not "new", it's consistently been "proven" that it's quite gimmicky and in general sacrifices three moveslots for the ability to Burn. It's not even a surprise as the Flame Orb message is telegraphed to your opponent.
Oh wait, no, you're running Toxic / Rest / Sleep Talk / Psycho Shift so that you can Toxic and sleep your opponent. You know what'd be better though? Probably Uxie, who can Toxic and Yawn. Plus Uxie actually carries an attack not named Charge Beam that Steels don't resist.
Please don't overuse words like "incredible" and "amazing". If people use them a lot, then they'll lose their meaning.
Swagger - Flip a coin. If heads, you gave your opponent a free Swords Dance. If tails, your opponent attacks itself with a 40 base power move with double the damage. Rinse and repeat. Do you really want to risk "heads" ever coming up?
Snatch - Actually a good move, albeit situational. However, Snatching a Recover or Substitute is just so cool.
Psycho Shift - DDayardos, moves aren't used for a reason, and Psycho Shift is no exception. Let's look at the statuses you can bounce back. Thunder Wave is typically used against sweepers who don't have room for Psycho Shift. Regardless, instead of a Shifter you could use a Ground type. Sleep and Freeze are not options (Sleep Talk Rest Psycho Shift is wasting 3 moves in exchange for a Sleep that takes longer than, and is less reliable than, Yawn). Burns are only used on physical attackers, and every Psycho Shifter I can think of uses Special attacks. Toxic is the most viable shift move, but instead you could carry, you know, Toxic, rather than Rest / Sleep Talk / Psycho Shift.
Flame Orb Cresselia suffers from some major problems: 12% damage per turn and 3 moveslots taken. This makes Cresselia much, much easier to 2HKO and basically ensures that it can't wall anything anymore.
Me First - The main problem is that very few Pokémon are (1) Faster than most everything and (2) Have decent Attack stats on both ends of the spectrum. While it's probably a life saver against a Salamence locked into Outrage, it's very situational and can't be relied on.
The rest of the moves are either forgotten due to not being spead around enough (WoW) or are actually awesome (Knock Off).