Swiftwolf's Rending Gale (Equivalent Exchange)

Crafted with feathers, Dark Matter, and an Iron Band.
A multi-purpose ring with several powers.
1) First and foremost, the left click projectile will launch mobs high, far and fast for 1 redstone dust, unless it's raining. If it's raining, the projectile will summon a thunderbolt for 2 glowstone dust, decimating your target. If it's a thunderstorm, the cost will remain 2 glowstone dust, but it will attempt to summon 2 or 3 bolts per projectile fired, ensuring swift death. Finally when fired directly into the air, the projectile will transform any rainstorm into a thunderstorm for 1 redstone dust.
2) When equipped and activated with the G key, the alchemist will have power over the wind, and be capable of flying. Pressing jump will elevate you, pressing sneak will descend, and all keys except backwards will propel you rapidly through the air. Every ten seconds, the ring will consume 1 redstone dust until deactivated or depleted.
3) When charged for a brief moment, a different effect will activate, creating a wind-barrier around the player approximately 5 blocks of distance. Almost any entities attempting to enter this field will be repelled, including arrows. A ghast's fireball is the only vanilla attack that can breach this barrier without an alchemist forcing an opponent into an immovable corner and allowing it to attack. Every five seconds, the ring will consume 1 redstone dust until deactivated or depleted.
4) Swiftwolf's Rending Gale cancels out all falling damage.
Both abilities, can be activated independently of one another, and the ring will display a color blue, red, or purple to indicate flying, interdiction or both, respectively.