With the introduction of Zephrys the Great in this expansion, highlander decks suddenly become popular again. Mages traditionally always have affection to the archetype. So i did the test, combining Highlander with the Quest archetype.

Highlander x Quest archetype

 

Testing this on Rank 5. Again, slightly meme deck, but pretty reliable.

Unlike the original Quest Vargoth Mage deck which is auto-win vs Big Priest, this deck had difficulties on that match-up (only about 50% wr). While the combo damage is reduced and the 'Freeze' effect is reduced, it performs far better against Aggro. Currently had no problem against other decks (sample still very small, testing in progress).

COMBO

Same strategy as original quest mage. Stay alive, complete your quest, OTK from hand. The earliest this combo can be performed is on turn 9. With this deck, you will probably cycle until you're Out of Cards. Don't worry, you have a lot of means to survive.

The combo cards are: Time Warp, Archmage Vargoth, Greater Arcane Missiles, and Molten Reflection. With these cards, you will get 45 damage. Drakkari Enchanter boosts the combo above, dealing 81 damage finishing blow, enough to kill most decks.

To properly get maximum damage, make sure there's no other minion on your board before performing the ritual.

First Turn: Play Time Warp and Archmage Vargoth, then go Extra Turn. If on turn 10, do not ruin Vargoth effect by spending 1 mana left on another spell.

Second Turn: Play Molten Reflection on Archmage Vargoth. You can use leftover mana for hero power. Do not use that for any spells or minions, so you don't ruin Vargoth effect on copying itself. You can attack minion/face using Vargoth this turn, just don't let this minion die. Hit Extra Turn, now you have 4 Vargoths.

Third Turn: Play Greater Arcane Missiles, Additionally you can play Drakkari Enchanter this turn. Again, you can attack minion/face using Vargoth this turn, just don't let him die. Finish your turn. 

Alternatively you can play another weaker combo around Arcane Giant and Conjurer's Calling. With help of Time Warp, you can get lethal damage, but only if your opponent doesn't have taunts.

CARDS EXPLANATION & MULLIGAN

QUEST CARD

Play on turn 1. Your gameplan will be immediately known by your opponent. Don't worry, them reading your plan doesn't always mean they can keep up.

QUEST COMPLETION CARDS

These cards generates spells for your quest completion, while also contribute to your survival. Basically you pick cards that help you finish the Quest faster during mulligan. So, prioritize these cards in mulligan, unless you get cards like Zephrys the Great and Reno Jackson that might be useful especially vs Aggro to get back from behind. I pick these cards specifically to reduce rng, so be mindful when you pick spells from those Discovers.

CARD DRAWS

You need to cycle your deck a lot to survive and perform your combo. These cards will help you, either by actually drawing cards or thinning your deck.You usually don't need to keep these cards during mulligan, as you can always get these on later turns.

COMBO CARDS

See Combo section above for details.

SURVIVAL CARDS

These cards are purely for survival. Having your Ice Block triggered and then on next turn you play Reno Jackson almost always makes your opponent tilt. 

SPECIAL CARDS

My personal favorite card ever so far on HS. Always useful on every occasion. In my opinion, you should use this only when you're in a deep sh*t, as it shines more brightly during those difficult times. Don't waste it on earlier turns when there are no danger.

Tempo play. Use it to clear the enemy board.

Versatile bounce, mainly to target Zephrys the Great, Reno Jackson, or Reno the Relicologist.