Skystrike is a unique Edge Bow.
It is well-rounded in that it has a lot of added Lightning damage, an enhanced damage bonus, a boost to Attack Rating, and 30% Increased Attack Speed.
If you are playing a multishot/strafe bowazon the meteor strike will proc fairly frequent, but it takes 3 seconds to land making it somewhat useless against mobile enemies, but very effective against zombies, bosses or stationary monsters.
Stats[]

Skystrike
Edge Bow
Two-Hand Damage: (15-18) to (47-57)
Required Level: 28
Required Strength: 25
Required Dexterity: 43
Bow Class - Very Fast Attack Speed
+150-200% Enhanced Damage
Adds 1-250 Lightning Damage
2% Chance To Cast Level 6 Meteor On Striking
30% Increased Attack Speed
+100 To Attack Rating
+1 To Amazon Skill Levels
+10 to Energy
Normal Bows — Pluckeye (Short Bow) • Witherstring (Hunter's Bow) • Raven Claw (Long Bow) • Rogue's Bow (Composite Bow) • Stormstrike (Short Battle Bow) • Wizendraw (Long Battle Bow) • Hellclap (Short War Bow) • Blastbark (Long War Bow)
Exceptional Bows — Skystrike (Edge Bow) • Riphook (Razor Bow) • Kuko Shakaku (Cedar Bow) • Endlesshail (Double Bow) • Witchwild String (Short Siege Bow) • Cliffkiller (Large Siege Bow) • Magewrath (Rune Bow) • Goldstrike Arch (Gothic Bow)
Elite Bows — Eaglehorn (Crusader Bow) • Widowmaker (Ward Bow) • Windforce (Hydra Bow)