Morvran Iorwerth is the nephew of the late Lord Iorwerth. He can be found in the Iorwerth Clan segment of Prifddinas, and acts as the highest level slayer master in the game, requiring 85 Slayer, a combat level of 120, and completion of Plague's End to use. He offers the hardest slayer assignments in the game and also runs the Rush of Blood D&D. He also makes a brief appearance in Regicide when a player exits the Underground Pass. With the help of Essyllt, he slays a member of the elf resistance known as Idris.
During the Elven Civil War, he was Head of Intelligence for the Iorwerth Clan and led a warband whose duty was to assassinate enemies along with Essyllt. When the war ended and Lord Iorwerth was killed by the Dark Lord, Morvran relinquished his position as next-in-line for lordship, allowing Iestin Edern to take control of the Iorwerth. Instead, he chose to study combat and various dangerous creatures that require special techniques to kill.
Players can easily reach Morvran by teleporting to the Iorwerth segment of Prifddinas via a crystal teleport seed, a ferocious ring, or by teleporting to Prifddinas via the Lodestone Network and walking south-west.
Slayer points
Successfully completing a Slayer assignment confers an amount of Slayer reward points depending on how many tasks have been successfully completed in a row. After the Smoking Kills quest the amount is doubled. Completion of a task assigned by Morvran after completing Smoking Kills will grant:
- 20 Slayer points for a normal task
- 100 for every 10th task
- 300 for every 50th task
This means that an average of 32 points are earned per task in each 50-task set, resulting in a total of 1600 points.
For obtaining the "of the Iorwerth" Title, Co-Op Dark Beast assignments DO count. In a Co-Op situation, players may not use a Dark Beast enhancer token or the Mask of Gloom to obtain a task. Both players MUST have the same task before getting into a Co-Op.
Assignments
| Monster name | Number of kills per task | Combat level | Slayer experience | Slayer level | Weakness | Weighting |
|---|---|---|---|---|---|---|
| Abyssal demons | 180-319 | 98 | 277.8 | 85 |  Slash
|
10 |
| Airut | 150-180 | 122 | 800.2 | 92 |  Nothing
|
16 |
| Ascension members | 120-150 | 84 (Rorarius), 91 (Gladius), 105 (Capsarius/Scutarius), 304 (Legiones) | 140, 220.2, 146.6/390.2, 1445/1922/1922/1922/1923/1923 | 81/95 |  Ranged
|
10 |
| Automatons | 80-100 | 115 | 624 | 67 |  Fire spells (Automaton Guardian) Crush (Automaton Tracer) Arrows (Automaton Generator)
|
8 |
| Aviansie | 150-180 | 89, 92, 95, 580/102 (Kree'arra and guards) | 171, 187, 207, 2934/363.8 | 1 |  Bolts (aviansies), Nothing (Kree'arra and guards)
|
9 |
| Aquanites [1] | 195-240 | 95 | 103.6 | 78 | Arrows
|
10 |
| Black demons | 230-300 | 98 | 294.4 | 1 | Bolts
|
10 |
| Black dragons | 50-125 | 70 (Baby), 100 (Black), 276 (King), 900 (Queen) | 45, 245, 1050.6, 1694 | 1 | Bolts (baby/regular dragons), Nothing (King/Queen)
|
5 |
| Celestial dragons | 150-180 | 127 | 976.3 | 1 | Arrows
|
10 |
| Dagannoth | 205-290 | See Dagannoth article | See Dagannoth article | 1 | See Dagannoth article | 10 |
| Dark beasts | 180-340 | 105, 112 (Revenant) | 331.4, 256 | 90 | Bolts, Nothing (Revenant dark beast)
|
12 |
| Desert strykewyrms | 110-190 | 103 | 301.2 | 77 |  Stab
|
7 |
| Elves | 150-180 | 84/89 (Elf Warrior), 122 (Cadarn magus, Cadarn ranger, Iorwerth guard, Iorwerth scout) | 73.6/89.4, 608, 608, 608, 608 | 1 | Fire spells Crush Slash Arrows
|
12 |
| Edimmu | 170-265 | 122 (normal), 125 (powerful) | 800, 929 | 90 | Slash
|
10 |
| Gargoyles | 180-300 | 93 | 197.4 | 1 |  Water spells
|
8 |
| Ganodermic creatures | 85-110 | 112 | 565 (beast), 565 (runt) | 95 | Fire spells
|
7 |
| Glacors [2] | 60-85 | 112 | 1881 | 1 | Fire spells
|
8 |
| Greater demons | 180-300 | 82, 650/102 (K'ril Tsutsaroth and Tstanon Karlak) | 135.4, 1849.5/209 | 1 | Bolts (regular), Fire spells (K'ril/Tstanon)
|
11 |
| Grotworms | 100-180 | 28 (young), 63 (regular), 98 (mature) | 11.4, 102.8, 343.5 | 1 | Bolts
|
10 |
| Ice strykewyrms [3] | 120-240 | 106 | 462.2 | 93 | Fire spells
|
8 |
| Iron dragons | 75-130 | 98 | 245 | 1 | Water spells
|
7 |
| Kal'gerion demons | 60-120 | 126 | 1858.8 | 90 | Nothing
|
5 |
| Kalphites | 205-300 | See Kalphites article | See Kalphites article | 1 | See Kalphites article | 5 |
| Lava strykewyrms | 60-120 | 115 | 1404 | 94 | Nothing
|
8 |
| Mithril dragons | 25-51 | 112 | 594.4 | 1 |  Earth spells
|
8 |
| Muspah [4] | 150-180 | 150 | 469 | 76 | Nothing
|
10 |
| Mutated jadinkos | 195-265 | 93 (baby), 96 (guard), 100 (male) | 98.6, 188.4, 209.6 | 80, 86, 91 | Stab
|
8 |
| Nechryael | 170-265 | 96 | 251.6 | 80 | Crush
|
10 |
| Nihil [4] | 50-110 | 160 | 705.4 (Blood), 564 (Ice and Shadow), 423 (Shadow) | 76 |  Magic (Blood) Ranged (Ice/Smoke) Melee (Shadow)
|
10 |
| Shadow creatures | 98 (Truthful), 112 (Blissful), 126 (Manifest) | 343, 565, 930 | 1 | Fire spells
|
10 | |
| Steel dragons | 50-125 | 100 | 350 | 1 | Water spells
|
9 |
| TzHaar | 95-130 | 86 (Normal), 112, 119 (Fight Cauldron) | 77.5, 198, 254, 381, 445, 813.5, 824 | 1 | Water spells (TzHaar-Ket and TzHaar-Hur) Slash (TzHaar-Xil) Arrows (TzHaar-Mej) See Fight Cauldron
|
8 |
| Tormented demons [5] | 50-75 | 119 | 1136 | 1 | Fire spells (melee), Bolts (magic), Stab (ranged)
|
8 |
| Vyrewatch [6] | 110-155 | 70, 72, 75, 78, 86, 91 (Vyrewatch) / 98 (Vyrelord/Vyrelady) | 43.2, 47.4, 52.2, 57.6, 89.4, ?, 93.8 / 115 | 31 / 67 |  Thrown (only blisterwood weapons can cause damage)
|
7 |
| Waterfiends | 205-300 | 102, 107 | 290.8, 335 | 1 | Bolts
|
9 |
| Total weight | 305 |
- ^ Only after paying 50 Slayer points to toggle on the ability to be assigned them.
- ^ Only after completing Ritual of the Mahjarrat and paying 50 Slayer points to toggle on the ability to be assigned them.
- ^ Players need to own a fire cape or TokHaar-Kal (equipped, in player-owned house, in bank, or in inventory) or have purchased the ability to get an ice strykewyrm Slayer task for 2,000 Slayer points. Players must also have completed The Tale of the Muspah. Dropping all fire capes before obtaining a new task and picking them up afterwards can avoid this assignment.
- ^ a b Only after completing Fate of the Gods and paying 50 Slayer points to toggle on the ability to be assigned them.
- ^ Only after completing While Guthix Sleeps and paying 50 Slayer points to toggle on the ability to be assigned them.
- ^ Only after completing The Branches of Darkmeyer.
Slayer challenge
Task weighting
The percentage chance of getting assigned a given slayer task can be calculated using the formula
where is the task's weight and is the sum of all weights for the particular slayer master. Note that the weights of all blocked tasks, as well as tasks toggled off have to be subtracted from the sum . Preferring a task doubles its chance of being assigned.
Dungeon
Morvran, watching slayers within his dungeon.
Trivia
- Prior to the release of Plague's End, Morvran's examine text was "An elven warrior." Now, he has the same one as Essyllt.
- The word Morvran is made up of the Middle Welsh words mawr, meaning "big", and brân, meaning "crow". The name is parallel to the Celtic spelling, Morfran, with only the f changed to a v. The Older Welsh usage is likely due to Jagex's usual use of the Welsh language in most of the Elven names in the game. Morvran is often depicted in Welsh Mythology as a dark, demon-like character that is very ugly.
- There used to be a bug that could cause players to receive irregular amounts of Slayer reward points for completing tasks assigned by Morvran. This was fixed on 13 October, 2014.
| Standard | |
| Special |
 Markus Death (or  Frank) Erskine Ling The Raptor (removed) |
| Former |
 Catolax Faiza |
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Template:Prifddinas NPCs