It's interesting why we even get to use swords. If anything i would have thought an archer may get a small dagger, Legolas style. But the way the skills are set up there is really no reason to use a sword. I have yet to find a serious archer who actually uses them over bows. I've also yet to hear a legit reason to use a sword. Hitting a warrior with sleeper ban if he gets close is the best thing i've heard. Actually there is one valid reason to have a sword on hand. During monster spawn events usually boxes or pigs are spawned that are resistant to range attacks so you cannot hit them with a bow/xbow. That would be the time to whip out a sword and start swinging. But there are virtually no skills usable with a sword and you don't get any speed upgrades and using a sword means you will be in close combat with your target and thus taking much more damage than a normal bow wielding archer.

Long Sword

Level 1

Plain and Noble versions

ATK Power: 19 - 21

Bastard Sword

Level 5

Plain and Noble versions

ATK Power: 23 - 26

Silver Sword

Level 11

Plain and Noble versions

ATK Power: 32 -35

This can actually be obtained from the quest A Devoted Husband Duke. If you choose the defender's reward. It is also buyable from an upgraded guild house's weapon merchant.

Gradius

Level 17

Plain and Noble versions

ATK Power: 42 - 47

Rune Blade

Level 23

Plain, Noble, Worship, and Heroic versions

ATK Power: 55 - 61

Damascus Sword

Level 29

Plain, Worship, and Heroic versions

ATK Power: 70 - 78

Aluster

Level 35

Plain, Heroic, and Dread versions

ATK Power: 87 - 97

Yelloster

Level 39

4 Slots, 38 base stats

ATK Power: 95 - 115

This weapon is a Pando drop limit of quantity, recently they started dropping again and showing no signs of stopping so as far as we can say they drop from mobs in the Skulleron (Pando) map. But not the fire mobs in Calli Puirr or Vindes Puirr (those drop higher level weapons).

Balisarda

Level 41

Plain, Noble, Worship, Heroic, Dread versions

ATK Power: 107 - 118

Beris

Level 45

4 Slots, 42 base stats

ATK Power: 116 - 140

This weapon is a Pando drop limit of quantity, recently they started dropping again and showing no signs of stopping so as far as we can say they drop from mobs in the Skulleron (Pando) map. From the fire mobs in Calli Puirr or Vindes Puirr.

Ascalon

Level 47

Heroic, Dread, Legendary, and Goddess versions

ATK Power: 128 - 142

Heroic version drops in Cloron's Lair from normal mobs. Dread version drops from the mobs in the Cloron Troll room. Legendary version drops from Cloron Troll and dragon boxes. Goddess version drops from Freezing Mirage dragon.

Rancor

Level 51

4 Slots, +36 STR base

ATK Power: 144 - 159

This is from a high level quest. Part of the quest requires that you collect drops that come from treasure chests that spawn after killing the big end game dragons Cloron and Freezing Mirage. Thus it is very difficult to complete and honestly this weapon would not be worth it to me. It does look pretty sweet though.

Tatugalon

Level 51

4 Slots, 46 base stats

ATK Power: 140 - 168

This drops from Cloron Dragon, boss of cloron's lair. He spawns 72 hours from the time of his last death.

Rune Gaia Sword

Level 56

5 Slots, 42 base stats

ATK Power: 156 - 173

This sword drops from bosses in Cryptic Throne, which opens only after killing Freezing Mirage dragon. They spawn only once a week.

Beriunse

Level 59

5 Slots, 48 base stats

ATK Power: 178 - 197

This sword drops from bosses in Cryptic Throne, which opens only after killing Freezing Mirage dragon. They spawn only once a week.