Sven Packmaster

Rabid Wolf genetically modified by a famous mad scientist. Eats bones and flesh.

— Maddox the Slayer

Sven Packmaster is a Slayer BOSS in the Wolf Slayer branch. It is an agile Wolf that deals True Damage.

Defeating the Tier IV Sven Packmaster results in unlocking the Enderman Slayer quest and the Voidgloom Seraph boss.

Spawning

Tier	Cost	Combat XP Required	Requirement
I	2,000 Coins	+250 Combat XP	Tarantula Broodfather Tier II
II	7,500 Coins	+650 Combat XP	Sven Packmaster Tier I
III	20,000 Coins	+1,500 Combat XP	Sven Packmaster Tier II
IV	50,000 Coins	+3,000 Combat XP	Sven Packmaster Tier III

Drops

Icon	Drop	LVL Req	Amount				Drop Chance
Icon	Drop	LVL Req	Tier I	Tier II	Tier III	Tier IV	Odds	Tier I	Tier II	Tier III	Tier IV
	Wolf Tooth	1	1-3	9-18	30-50	50-64	1Guaranteed	100%
	Hamster Wheel	1		1	2-4	4-5	3Occasional		16.67%	16.45%	16.35%
	Spirit Rune I	2		1			5Rare		0.68%	2.66%	6.37%
	Enchanted Book (Critical VI)	4			1		7Extraordinary			0.41%	0.81%
	Furball	4			1		7Extraordinary			0.82%	1.62%
	Red Claw Egg	5			1		9Pray RNGesus			0.04%	0.12%
	Couture Rune I	6				1	9Pray RNGesus				0.24%
	Grizzly Salmon	7				1	9Pray RNGesus				0.06%
	Overflux Capacitor	7				1	9Pray RNGesus				0.04%
	Celeste Dye		1				11RNGesus Incarnate	0.00001%	0.00004%	0.0001%	0.0002%

Behavior

The Sven Packmaster is a Wolf-type mob which is hostile towards all players. It is very fast and has a melee attack.

As with all Slayer bosses, if the Sven Packmaster has not dealt damage to a player for some time, it will begin rapidly regenerating health. The regeneration immediately stops when it hits a player again. Additionally, if either it or its target stays in the same block for too long, it performs a slam-dunk attack, knocking the target towards it and dealing True Damage. If 4 minutes pass without the boss being defeated, it will despawn, failing the Slayer quest. A timer is shown above its head indicating the remaining time.

Like the Revenant Horror, if the Sven Packmaster enters the village it will immediately despawn and you will fail the Slayer Quest.

Each tier has all of the abilities from the one before it.

Tier	Level	Health	Damage	True Damage	Ability		Slayer XP Reward
I	20	2k	60		Agile	The wolf is small and fast, making it harder to hit.	5 XP
II	100	40k	80	10	True Damage	Ignores your defense. Very painful.	25 XP
III	430	750k	180	50	Call the pups!	At 50% health, it calls its deadly pack of pups.	100 XP
IV	700	2M	440	200	Call the pups!	At 50% health, it calls its deadly pack of pups.	500 XP

Tier III and Tier IV

Upon reaching 50% health, the Sven Packmaster will begin moving very slowly, and no longer regenerates health^[Confirm]; critical particles appear around it. It spawns 1 Sven Pup at its location every second for 5 seconds, during which it is protected from attacks. Each Sven Pup has 10% of the max health of the Packmaster. When it is spawning pups, the text above its head reads "Calling the pups!", after which it says "Protected". If all the pups are killed, the Packmaster returns to its original behavior. When either the pups or the Packmaster attacked the player, the Packmaster won't regenerate health.

Minibosses

These are possible Minibosses that could spawn upon killing a Wolf when a Sven Packmaster Slayer quest is active. It is also possible to spawn another miniboss directly after killing one.

Name	Health	Damage	Combat XP	Minimum Tier to Spawn	Drops
Pack Enforcer	45,000 Health	360 Damage	100	Tier III	1 Wolf Tooth
Sven Follower	125,000 Health	1200 Damage	250	Tier IV	2 Wolf Tooth
Sven Alpha	480,000 Health	2200 Damage	500	Tier IV	5 Wolf Tooth

Tips

An EPIC or LEGENDARY Wolf Pet is especially useful to tank oncoming attacks better, as its Alpha Dog ability can cut down up to 30% of the damage received from the Sven Packmaster.
- Its Pack Leader ability also increases the player's Crit Damage, which stacks well with Mastiff Armor's Absolute Unit ability, which gives more Health per Crit Damage.
- Giving the pet a Dwarf Turtle Shelmet can be a good idea if the player has a hard time fighting the boss due to being constantly thrown around by its high knockback.
- The extra Health from this ability combo helps tank the pups that the Sven Packmaster Tier III and above spawns.
Sven Packmasters Tier III and above will stop regenerating Health once it starts spawning its pups, and the boss itself will move very slowly. It is recommended to heal oneself during this time try to not to take any Damage when it is this state.
A common strategy for players who cannot tank the Sven Packmaster's attacks well is to fight it in water, which allows the player to control the damage they receive to prevent health regeneration. The pups that spawn with a Sven Packmaster Tier III and above will stop attacking the player and drown.
- The pond next in the  Mountain, near the  Ruins is quick and easy to fight the boss in. The player can grind out wolves that grant high amounts of XP in the  Howling Cave and then teleport to the  Ruins when there is little XP required to spawn the boss. A Lead can be used on a Wolf to bring it to the pond, where the player kill it and spawn the boss.
A Radiant Power Orb and its upgrades are recommended for players using Mastiff Armor to combat the Sven Packmaster.
- Normal, non-multiplicative regeneration items such as Wand of Healing and its upgrades become next to useless when using Mastiff Armor due to it barely adding up to the massive health pool it provides. Thus, a Zombie Sword and its upgrade, the Ornate Zombie Sword is a substitute for instant healing.
Letting the boss hit the player every <15 seconds prevents the boss from regenerating.
Since the boss does True Damage at higher tiers, which makes Defense less valuable, armor that grants high amounts of Health, like Superior Dragon Armor, are highly recommended to absorb the blows from the Packmaster. It is also a good idea to enchant armor with Growth, for an extra Health boost.
- True Protection can help slightly in cutting down received Damage from the Sven Packmaster.
True Defense can be a bit of a liability to get in meaningful quantities early on, but good sources include
- Wolf Pet for +10 True Defense, or if you are really desperate for more, the Mithril Golem Pet for +50 True Defense
- God Potion will grant +20 True Defense
- A Dwarf Turtle Shelmet grants +10 True Defense
- The True Protection enchantment grants +5 True Defense
Wearing Sorrow Armor is advised when fighting this boss, since it has enough True Defense to keep the player alive and additional Magic Find, helping the chances of dropping rarer loot.
A Souls Rebound used to be able to prevent the Sven Packmaster second phase from occurring and could kill it in one hit with decent gear. This method is no longer available as it has since been patched.

Trivia

This mob's name could be a reference to Sven, the pet wolf in PewDiePie's 2019 Minecraft series.
The "mad scientist" mentioned in the Sven Packmaster's lore could possibly be Aura.
All Sven Packmasters are immune to all types of ability damage and ranged damage, including the ability of Flower of Truth. Voodoo Doll used to be able to damage the Sven Packmaster but it was shadow-patched.

History

SkyBlock Prototype
Oct 11, 2019	0.7.2	Added Sven Packmaster.
Oct 14, 2019		Buffed XP from Tier IV boss by +100 (from 400 to 500).
		Reduced kills required for Tier IV by -25%.
		Added a +40% delay before regeneration kicks in when out of combat.
		Reduced Sven Packmaster top speed.
Oct 15, 2019		Made Sven Packmaster immune to Bow damage.
Oct 15, 2019		Sven Packmaster will now slam dunk its target from afar if they haven't moved in a bit.
Mar 30, 2021	0.11.3	Reduced DPS by 125 for Tier II (from 200 to 75).
		Reduced DPS by 315 for Tier III (from 450 to 135).
		Reduced DPS by 770 for Tier IV (from 1100 to 330).
Unknown Date		Added +5 DPS for Tier II (from 75 to 80).
		Added +45 DPS for Tier III (from 135 to 180).
		Added +110 DPS for Tier IV (from 330 to 440).
Apr 20, 2022	0.13	Added Furball drop to Sven Packmaster Tier IV loot table.
Sep 28, 2022	0.15	Changed amount of Combat XP required to spawn Sven Packmasters.
Unknown Date		No longer immune to magic damage.
Unknown Date		Once again immune to magic damage.