~~STANDARD COMBO LINE~~
Normal Revealer of the Ice Barrier, activate effect.
Special Hexa Spirit of the Ice Barrier from deck, Hexa send Mirror Mage of the Ice Barrier.
Mirror Mage effect in grave, grab Speaker for the Ice Barriers.
Summon Speaker since you control an Ice Barrier.
Synchro 6 into Coral Dragon using Hexa and either Speaker or Revealer.
Link summon Marincess Coral Anemone using Hexa and Coral Dragon.
Coral Dragon Effect to draw 1.
Coral Anemone effect to summon Mirror Mage from GY
Mirror Mage effect tributing Coral Anemone, generate 3 Ice Barrier tokens.
~~IF YOU HAVE Georgius, Swordman of the Ice Barrier IN HAND, SUMMON HIM HERE. SUMMON REVEALER FROM GY USING HIS EFFECT, SYNCHRO 10 INTO Lancea, Ancestral Dragon of the Ice Mountain~~
Effect of Speaker in GY to generate another Ice Barrier token.
Synchro 9 into Ravenous Crocodragon Archethys using Mirror Mage and 4 tokens. (Alternatively, if you are going second, you can make Trishula, Dragon of the Ice Barrier here to hand rip and assist with the breaking of a board)
Ravenous Effect to draw 4
IF you drew into Icejade Ran Aegirine+ 1 water, use effect of Ran Aegirine to summon herself+Token
Synchro 10 into Icejade Gymir Aegirine if you have already summoned Lancea, if not, summon Lancea.
IF you drew into Freezing Chains of the Ice Barrier, use the effect to summon Hexa + Synchro 10 into Lancea/Icejade Gymr Aegirine if you haven't gotten them both on field yet.
~~During Opponent's Turn~~
Twice per turn, if your opponent special summons a monster, Lancea can summon an Ice Barrier from Hand, Grave or Deck. It also lets you change the battle position of an opponents monster when you do, which is quite useful against Tenpai. It also floats into an Ice Barrier Synchro upon removal from field (to a public location- GY or Banishment), letting you boardbreak or handrip by going into Trishula, Dragon of the Ice Barrier or Trishula, Zero Dragon of the Ice Barrier
General Raiho of the Ice Barrier forces your opponent to discard to resolve monster effects activated on the field. This includes effects that tribute the monster activating the effect. If they don't discard, the don't get the effect. This can be beneficial, but it also lets Yubel stay on field if they don't tribute another monster.
Warlock of the Ice Barrier is Anti-Spell Fragrance. Use it as you would that card.*
Georgius, Swordman of the Ice Barrier prevents your opponent from activating monster effects in the GY. You can get a lot of use out of the Georgious summon by getting Warlock in grave before summoning Georgious, as Georgious summons an IB monster from GY, thus getting you 2 floodgates for the price of 1.
Spellbreaker of the Ice Barrier just blanket prevents the activation of spells, so long as it remains on field. Quite useful against Runick variants, however, it also locks you out. It's up to you to decide if this or Warlock is a bigger priority. I prefer Warlock.
Speaker for the Ice Barrier prevents your opponent's monsters from changing from defense position. Little to no benefit outside of specific matchups.*
Revealer of the Ice Barrier prevents your opponent from tribute summoning. Little to no benefit outside of specific matchups.*
Hexa Spirit of the Ice Barrier drops opponent's Atk/Def by 500. Little to no benefit outside of specific matchups.*
*These require you to control another Ice Barrier monster. I typically summon Raiho or Georgious first to ensure the others will be active.
Icejade Gymr Aegirine lets you protect your monsters from destruction/banish by card effect, which is IMMENSELY useful in a lot of matchups. This is a quick effect, BUT if you chain it to an opponent's card effect, it lets you banish the card you chained it to. Which means that Field Spells/Continuous Spells will NOT resolve if you chain it to the activation of those effects, as they will no longer be on field.
Ravenous Crocodragon Archethys lets you quick effect pop a card on field. Save it, as it requires you to discard 2.
Techs:
Cartorhyn the Hidden Gem of the Seafront is a monster that provides an extra normal summon of a Water or Earth monster by discarding itself. This can be QUITE useful for extending past Nibiru, depending how you open. It being a rock can also be very useful if going second, as you synchro 8 into Adamancipator Risen - Dragite, and use it's effect to excavate 5. If you sided in Nibiru as well, this gives you a pretty high chance (assuming you didn't draw either Nib or Cart in your opening hand/turn draw, or have additional draws off of Pot or Mulcharmy, a base chance of 17% to hit one on the first excavate, with a total chance of 64%) of hitting a Rock monster for Dragite's effect to bounce, which can be quite useful
White Aura Whale is a boardwipe. I don't really think I need to explain it. You can opt into running Crystron Quandax to quick effect synchro into it during your opponent's turn and prevent them from setting up board presence.
Fishborg Launcher is a really good target to send off of Tidal, Dragon Ruler of Waterfalls. It enables you to turn a board that might just be Toad+Crocodragon pass into Toad + Lancea, which is infinitely better and fits the deck's gameplan more. If you open absolutely cracked or draw insane off of Crocodragon/Coral Dragon, you can potentially end on Lancea + Gymr + Chengying.