Vyraxis the Obsidian Dragon
Only on BLSTBLST's own dragon boss on Obsidian Isle: a solo instance with four stages and an enrage. Drops the X Bow at 1/5,000 and the pet Baby Vyraxis.
Vyraxis is only on BLST. You fight it alone in a private copy of its arena, and the fight gets harder as its health goes down.
How the fight works
You pray against what is coming, and every hit is checked when it lands, so a late prayer switch can still save you.
| Stage | Health | Attack speed | What changes |
|---|---|---|---|
| Scaled hide | 100-66% | 5 ticks | Ranged or magic at random. Dragonfire every 4th attack. Scale rain every 7th attack. |
| Moult | 66-33% | 5 ticks | Style switches after 6 attacks. Every 3rd is disguised as the other style. Loose scales on the floor. Takes 25% less magic damage. |
| Fury | 33-10% | 4 ticks | Ice fire and the wing buffet join in. Scale rain every 5th attack. |
| Enrage | Below 10% | 3 ticks | Style switches after every attack. Dragonfire every 3rd attack, scale rain every 4th. |
- Scale shot and magic breath: up to 38-46 depending on stage. The right protection prayer blocks them fully.
- Disguised attacks: the projectile looks like the other style. Vyraxis uses a head-butt animation instead of its breath: that is your tell.
- Claw: only when you stand next to it, up to 45-55. Protect from Melee blocks it.
- Dragonfire: up to 80-95. Full protection lowers that to 20-33. Overhead prayer does not stop it, though Protect from Magic helps a little.
- Scale rain: shadows mark 4 to 7 tiles around you. Move within 3 ticks, or take 35-65 damage per tile.
- Ice fire: ignores prayer and defence, up to 50-55. An anti-dragon shield, dragonfire shield or ward lowers it to 12-14 and stops the 3-tick freeze.
- Wing buffet: when you are next to it, a wing beat hits for 20-35 and knocks you back.
- Stomp: standing under the dragon is not safe. It stomps after 3 ticks for the same damage as its claw.
Soft enrage
From 5:00 fight time, all max hits rise by 5% every 30 seconds, up to +50% at 9:30. Long fights get dangerous.
Drops
| Item | Quantity | Chance |
|---|---|---|
 X Bow UniqueOwn roll. Only a donator drop bonus lowers it, to 1/4,500 at best. | 1 | 1/5,0000.02% |
 Baby Vyraxis UniquePet. Bonuses count, but never better than 1/1,501. | 1 | 1/3,0010.0333% |
 Superior dragon bones | 2 | Always |
 Black dragonhide | 2 | Always |
 Coins | 50,000-120,000 | 1/2.6637.6% |
 Death rune | 300-500 | 1/214.77% |
 Blood rune | 250-450 | 1/214.77% |
 Dragon bones (noted) | 15-30 | 1/214.77% |
 Black dragonhide (noted) | 25-40 | 1/214.77% |
 Soul rune | 150-300 | 1/263.85% |
 Wrath rune | 60-120 | 1/263.85% |
 Anglerfish (noted) | 10-20 | 1/263.85% |
 Manta ray (noted) | 15-25 | 1/263.85% |
 Superior dragon bones (noted) | 8-15 | 1/34.32.91% |
 Dragon bolts | 60-120 | 1/34.32.91% |
 Dragon bolts (unf) | 60-120 | 1/42.72.34% |
 Grimy torstol (noted) | 10-25 | 1/42.72.34% |
 Grimy snapdragon (noted) | 15-30 | 1/42.72.34% |
 Grimy ranarr weed (noted) | 15-30 | 1/42.72.34% |
 Runite ore (noted) | 8-15 | 1/42.72.34% |
 Ruby dragon bolts (e) | 25-50 | 1/511.96% |
 Diamond dragon bolts (e) | 25-50 | 1/511.96% |
 Dragon arrowtips | 50-100 | 1/511.96% |
 Uncut dragonstone (noted) | 2-5 | 1/59.31.69% |
 Dragonstone dragon bolts (e) | 15-35 | 1/67.71.48% |
 Onyx bolts (e) | 15-30 | 1/761.32% |
Chance per kill for a player with no drop bonus. The X Bow and the pet roll separately from the table, so they come on top of a normal drop. The X Bow waits by the Obsidian rocks for 60 minutes if you leave without it.