If I am running 3 elements, is Browse too expensive?

Key to this deck is getting Ghost Ship out on the board. Need 6 mana/1 Water.

Slow down your opponent until you can get Ghost Ship summoned.

Preferably have a Phantom Steed waiting in the Void for Ghost Ship, so you can use GS ability on the turn it was summoned.

Free Summons Engines (FSE's):

These FSE cards each have the "summon" function in some fashion. When a card is summoned by their triggered ability, it ignores threshold requirements and mana cost.

1) Ghost Ship (Spirit) - when it enters a site from Void, summon a Spirit from any cemetery to its location

Carry GS with Phantom Steed (+2 movement) to get to/from the Void in 1 turn. So you can summon a Spirit from Cemetery every turn

2) Mother Nature (Spirit) - at start of turn reveal top spell. If it's a minion, you may summon it here.

Use Ghost Ship to summon Mother Nature asap.

3) Ultimate Horror (Spirit). Genesis --> Summon each other dead Voidwalk minion (including opponent's) to a nearby site or void.

Use my smaller Voidwalk minions to stall the game until I get these Free Summon cards out. Ultimate Horror will reanimate all the Voidwalk minions!
Beefy Voidwalk minions summoned by Ultimate Horror Genesis ability:
The Doom of Dilmun
Dormant Monstrosity

Beefy Spirit cemetery summons via Ghost Ship

Lord of Void
Ninth Legion
Mother Nature
Sky Baron?

Beefy Voidwalk cemetery summons via Ultimate Horror:

The Doom of Dilmun
Dormant Monstrosity

How to speed up draw for Ghost Ship:

Dream-Quest. Allied Spellcaster falls asleep and is disabled until hurt. If still asleep at start of next turn, search spellbook and put 1 card in hand.
Browse. Look at next 7 spells. Put 1 in hand and the rest at bottom in any order.
River sites. Genesis --> Look at next spell and you put it on bottom
Sjaelstrom. Banish all nearby Spirts and Auras. Draw a spell for each
Sisters of Avalon. Genesis --> Discard a spell. Draw a spell. Discard the FSE's
Apprentice Wizard. Spellcaster. Genesis --> Draw a spell.
Wizard's Den (Site). Genesis --> Draw a spell. Discard a spell when this site is first attacked.
Gift of the Wolf. Give an allied minion +2 power this turn. Draw a spell.
If you know what's on top of your deck, then these also work:
Shallow Grave (Site). Genesis --> Discard your top 2 spells.
Cemetery Rats. Genesis --> Discard your top 2 spells.

How to get FSE cards into Cemetery:

Sisters of Avalon. Genesis --> Discard a spell. Draw a spell. Discard the FSE's
Cemetery Rats. Genesis --> Discard your top 2 spells.
Chorus of Condemnation. Each player chooses another to discard a card. Discard FSE
Wizard's Den (Site). Genesis --> Draw a spell. Discard a spell when this site is first attacked.
Forgotten Tomb (Site). Genesis --> Search your top 5 spells for a minion to discard. Bottom the rest.
Shallow Grave (Site). Genesis --> Discard your top 2 spells.

Use Seer ability (at start of turn, look at next site or spell and you may put it on the bottom) to carefully time when to play the above cards. If you know what the next card is, you can more accurately/favorably get the FSE's into the cemetery.

Recursion

Pendragon Legacy

Rescue

Raise Dead

Book of the Dead

For Dream-Quest, need to cast on Allied Spellcaster. Need to figure how many I have (apprentice Wiz for card draw?) Am I adding them just for this card? Is it worth it?

Cast Sjaelstrom on my own spirits to generate card draw so I can get Ghost Ship? Dangerous because the affected Spirits are banished, but effective. Need some cheap sacrificial spirits to use for this.

How to avoid enemy threats/removal?

How to deal with cemetery hate?

Wormelow Tump

Mana split

Is this combo worth it? Shoggoth has Voidwalk, so would be reanimated by Ultimate Horror.

Elder Ruins - Sacrifice a minion hear - Cast a Shoggoth submerged here from your Collection.

Shoggoth - 6 mana/2 Water for 5 power Monster with Submerge and Voidwalk

Maybes

Craterize - do I have enough other finishers? Is this too expensive?

Sphere of Animosity - to trap enemy Avatar of I go Around the World

Highland Princess - to draw Ether Core

Browse - it requires 3 Air threshold. Is that too expensive? Good to fetch Ghost Ship

Howl from Beyond - how many voidwalk do I have? How many do not have voidwalk? They would be wasted.

Ruler of Thul and Polar Explorers for Around the World Surprises

Door Knockers (Finishers)

Zap! In Collection

Removal

Bury (+Collection)
Drown (Collection). Do I have enough water to make this worth it?
Grim Reaper. Use Evil Presence to give it Charge. Acts like removal.
Kiss of Death

V2 - 3 Element Void Spirits

@Brian Milton