Swiftwolf's Rending Gale

As of EE2

 * 1) Pressing G no longer gives you the ability to fly. Instead, pressing jump twice (like in creative mode) with SWRG anywhere on the inventory hotbar (even non-active slot) will activate the SWRG's flying ability. Pressing jump twice while flying will disable flying, and flying mode on the ring. Flight will also be disabled as the player lands. As of EE2 1.4.6, flight will now consume fuel (redstone or glowstone).


 * 2) Flying above lava while using the SWRG will cause you to be sucked into the lava and be unable to fly.

As of v5.x.x:

 * 1) Right clicking fires a projectile, which launches mobs for 1 redstone dust, unless it's raining. If it's raining, (and you're outside) the projectile will hit them with lightning for 2 Glowstone Dust, or if you have a Klein Star, it will use the Klein star as fuel to shoot lightning. If it's a thunderstorm, it will hit them with 2 or 3 bolts for the same price. When fired directly into the air, the projectile will transform any rainstorm into a thunderstorm for 1 Redstone Dust.


 * 2) When activated with G, you will be able to fly. Pressing jump twice (like in creative mode) begins the flight mode or ends it. Pressing sneak descends. It must remain on your hotbar or you will fall. While on your hotbar, you are immune to fall damage(no fuel needed) unless in the Nether. Be aware that flight uses fuel (from fuel items or Klein star).


 * 3) When activated with C, a different effect will activate, creating a barrier around the player, in the shape of an 11x11x11 cube. It will repel mobs and enemy projectiles.

WARNING: When activated with C, without fuel or a Klein Star, the SWRG will turn purple and spam the "stopped flying" sound until you turn it off again.

Both abilities can be activated independently of one another, and the ring will display a color: blue, red, or purple, to indicate flying, barrier, or both, respectively. The ring will consume 1 Redstone Dust per 10 seconds, or a Klein Star point per 10 seconds (40 seconds for Glowstone Dust, 2 minutes for Gunpowder, 2 minutes 40 seconds for Alchemical coal / glowstone blocks, and over twenty full minutes for Mobius Fuel)

It appears that creating a map while using the fly ability of the ring will always create map_0, regardless of your location.

Recipe
V6: 4 x 139,264 (Dark Matter) + 4 x 48 (Feather) + 2,880 (Iron Band) = 560,128 EMC Each

V5: 4 x 65,000 (Dark Matter) + 4 x 6 (Feather) + 1,256 (Iron Band) = 261,280 EMC each.

Video Tutorial
http://www.youtube.com/watch?v=HJrxHM7IcJ8