Sorcerer

Negate Magic
(Unnecessary)
A good Ultimate to use until you get Warhorn. You wouldn’t usually have this slotted as it offers no passive benefits, but if you know a specific fight where you want to stop enemies from doing AoE abilities you could use it for that exact situation, one morph also does a heal and stun but overall this is unnecessary compared with Warhorn.

Crystal Weapon → Morph of Crystal Shard
(Situational)
An important skill for Stamina groups especially, you activate the ability and then do a Light Attack which will reduce the enemies Armor by 1000. This is important to consider if you are trying to help your group reach the 18200 penetration cap, this skill should be used if your group is not hitting high enough pen. Could be used by a Sorc Off Tank, its a hard skill to use and maintain as it needs reactivating every 5 seconds so realistically it should be on a StamSorc if you have one in your group.

Restraining Prison → Morph of Encase
(Vital)
This is a way to immobilise enemies that are in front of you – this is mostly useful for 4-Man dungeons and arenas and a few limited trial situation. The main use for this skill is the Major Vitality. You actually gain the Major Vitality just by using the skill on a target, even if you cannot immobilise them such as bosses. So in hard hitting fights you could use this on a Boss to gain the Major Vitality to increase your incoming healing plus it will also proc the group buff Minor Prophecy from the Exploitation passive. When you use this on a boss you also get Magicka back so the skill is almost free.

Rune Prison
(Not Needed)

Dark Deal → Morph of Dark Exchange
(Vital)
You use this skill to trade Magicka for Health and Stamina, a very good tool for sustaining as a Sorcerer Tank. This will drop your block however so you really need to time the use of this when you are not taking a major mechanic or Heavy Attack. This is the skill that is usually used by Tank to proc the Exploitation passive and Minor Prophecy group buff.

Dark Conversion → Morph of Dark Exchange
(Optional)
This does the opposite of Dark Deal, so you trade Stamina for Health and Magicka. You will usually just use Dark Deal however there are some fights where you block a lot less and have time for Heavy Attacking so using this morph as a Heal/Magicka Sustain can be used, plus you need to have at least one Dark Magic skill available so it could be this if you don’t need the Stamina.

Daedric Minefield → Morph of Daedric Mines
(Optional)
Another way of immobilising targets, the way this differs from Restraining Prison is this places 5 mines around your location and when an target walks into it they get immobilised, where as Prison just Immobilises 6 enemies stood in front of you. Prison would be the better skill at the start of fight and this would work better mid-fight.

Unholy Knowledge
(Vital)
Good passive for Tanks, reducing all ability costs.

Blood Magic
(Unnecessary)
We generally don’t use any direct Dark Magic abilities so this passive isn’t that useful and we can heal with actual Healing abilities that are much stronger than relying on this passive.

Persistence
(Vital)
Since we are blocking pretty often as a Tank this is an amazing passive reducing the cost of our next abilities by 15% after we block.

Exploitation
(Vital)
This is the Sorcerer group buff and it’s an important buff to maintain for your group. It’s only useful for Magicka DD’s but its a strong buff adding approximately 2k DPS to each DD. You should cast a Dark Magic ability every 20 seconds, usually Prison if you are the Main Tank in a high damage trial or Dark Deal.

Daedric Curse
(Not Needed)

Summon Winged Twilight
(Situational)
You don’t really need this skill often, but you could use it for the passives and for group healing assistance.

Empowered Ward → Morph of Conjured Ward
(Situational)
You would only slot this if you have the bar space, it is to give your group the Minor Intellect buff to increase their Magicka Recovery.

Bound Aegis → Morph of Bound Armor
(Vital)
You would slot this initially for the 8% Max Magicka and Minor Resolve, and then the actual ability would only be used for very specific situations. You want to time the use of this ability to gain the huge 40% damage mitigation but it only lasts 3 seconds. You can recast it as much as you want but this would become expensive to sustain so you just want to time the use of this with heavy hitting mechanics.

Rebate
(Vital)
It’s not often your pet will die but if it does you’ll restore Magicka equal to about half the cost of the ability to re-summon it.

Power Stone
(Vital)
Ultimate cost reduction, great way to help us use our Ultimate/Warhorn more often/consistently.

Daedric Protection
(Optional)
A small boost to your Health Recovery is a slight help, Stamina recovery is mostly unnoticeable due to the low base Stamina Recovery and the fact that Tanks block a lot and not getting it anyway.

Expert Summoner
(Vital)
You’ll pretty much always have the Clannfear summoned since this is the Sorcerer Tank main heal so you’ll benefit from the 8% increased Health which in turn increases our Healing from the Clannfear with it scaling on Max Health.

Overload
(Not Needed)

Mage’s Fury
(Not Needed)

Hurricane → Morph of Lightning Form
(Unnecessary)
This might be used as a DD/Tank Hybrid for doing extra damage.

Boundless Storm → Morph of Lightning Form
(Vital)
This is the initial skill you use for Major Resolve until you can get Balance, but you should still use this for add pulls. When using this you also gain Major Expedition for 4 seconds and because it does Shock Damage there is a chance that you will concuss an enemy which can help to cause Minor Vulnerability and Off Balance which will cause your DD’s to do more damage to those targets. This would be good when dealing with adds as it’s an AoE shock damage so you could cause a whole pack of adds to be inflicted with Off Balance and Minor Vulnerability and the AoE Shock Damage helps for Elemental Catalyst also.

Liquid Lightning → Morph of Lightning Splash
(Vital)
You would want to use this as a Tank if you are not wearing Alkosh so you can provide an extra synergy to the Alkosh Tank. It also does Shock Damage so it has a chance to cause Concussion/Minor Vulnerability/Off Balance and the AoE Shock Damage helps for Elemental Catalyst also.

Surge
(Unnecessary)
Could be used in solo situation to provide some small incoming Heals over time and increase your Spell and Weapon damage which will increase your damage and healing also.

Streak → Morph of Bolt Escape
(Optional)
This morph would be used for adds and 4-man content. You Streak through the target and will stun them if they are not a Boss or Elite target. You also inflict Shock Damage which can help with Concussion/Minor Vulnerability/Off Balance/Elemental Catalyst.

Ball of Lightning → Morph of Bolt Escape
(Situational)
This is the morph which is better for Boss fights. You become immune to snares and immobilisation. You also create a Ball of Lightning at the location you moved to which will absorb projectiles. Generally this will absorb most projectiles even within a Trial environment and from bosses but it wont absorb projectiles based heavy attack.

Capacitor
(Vital)
10% Magicka Recovery, vital for Tanking.

Energized
(Optional)
Not a necessary passive it increases our damage. Worth having if you occasionally play solo content and you might as well use it to increase the damage you output. Increasing shock damage wont increase the chance/effect of things like concussion.

Amplitude
(Optional)
Increased damage against targets based on their health, again not super important but if you have the skill points it worth just having it and doing a little extra damage.

Expert Mage
(Optional)
Increased weapon and spell damage increases the healing we do so you should take this passive even though it will have very little impact.