Roulette is one of the most useful combos in the game and is very similar in execution and action to Death Coil. While in mid-air, swing twice and then pause before swinging again. This third strike will cause Dante to spin around a couple of times in the air. The attack causes Dante to float upward a little ways while propelling your enemy even higher (though not out of reach). The sweeping arcs of this attack are capable of reflecting projectiles.
Because it increases your height and the height of your enemy, this is a very important skill to have. Using this in conjunction with the Double Up ability for Osiris can add a lot to your air time. This combo should almost certainly be used every time you make your way into the air.
