https://www.channelfireball.com/articles/updating-ur-splinter-twin/

although powerful Cryptic Command has sat in my hand 3 out of 6 games with eldrizi. I am moving down to 2 and up to 4 roast the card is simple amazing with the bigger drops

Telling Time has been amazing,  serum visions has been ok but its slow also if i want to bring it back i need to do it my turn switch sucks

4/6/2018
With the banning of twin no one really looks at the Kiki combo. If you see a form of it in any decks it is and after thought. Just a way to maybe win if the decks can't grind out a win. Looking at older twin list most of the sideboard was set up for the mirror in my mind. With Twin being ban along with most of the decks it is weak against not being played heavily  Kiki combo is in good position.

Looking at a list of Twin before it was ban
Lands
5 x Island
1 x Mountain
4 x Scalding Tarn
4 x Misty Rainforest
3 x Steam Vents
1 x Stomping Ground
3 x Sulfur Falls
1 x Tectonic Edge
1 x Desolate Lighthouse
Creatures
4 x Deceiver Exarch
2 x Pestermite
1 x Vendilion Clique
2 x Grim Lavamancer
Noncreature Spells
1 x Dispel
4 x Serum Visions
1 x Thought Scour
1 x Spell Snare
1 x Flame Slash
4 x Lightning Bolt
4 x Remand
4 x Snapcaster Mage
2 x Electrolyze
2 x Cryptic Command
4 x Splinter Twin

Sideboard
1 x Dispel
2 x Ancient Grudge
2 x Engineered Explosives
2 x Blood Moon
2 x Sower of Temptation
1 x Jace, Architect of Thought
1 x Keranos, God of Storms
1 x Batterskull
2 x Spellskite
1 x Negate

This Deck has some mayor changes to it

Tectonic Edge and ghostly quarter has been replaced by Field of Ruin.
Field of Ruin get rid of my opponents mana and fixes mine allowing me to find Kiki faster and get the right mana to play him.

Desolate Lighthouse has never been great in my mind and has been replaced with Faithless looting. Again this lets me find the combo faster as well as sets up Logic not perfectly.

With the unbanning of Jace the mind sculptor people have been trying to play Cryptic Command but that is a trap agro decks can out race you to easily. Jace struggles in modern right now because be doesn't have the support he needs to fire off. In legacy this is done with force of will and cantrips to get more answers.

Jace the mind sculptor as a 3 off in this build is perfect. The goal is never to truly ultimate Jace but for Jace to give support to the combo itself. Jace is so feared he will buy you a turn most of the time and even let you search the top of your deck.

Cryptic Command  is still powerful but wrong for the deck because of Blood Moon and Kiki. The need to get to 3 red forces of mana outweigh getting to 3 blue sources. Often I will only have one basic island when I need to fire Blood moon off. I often get my 2nd basic island quickly however will almost never see it soon enough for Cryptic Command to make a differences in the game.

Flame Slash has been replaced with roast and although it cost one more doing 5 damage is much more likely to get rid of goft
Remand has been taken out I would rather play 2 logic not and 2 mana lech Remand being a soft counter and draw doesn't really help me. With  3 telling time 2 faithless looting and 4 serum visions along with Jace and other ways to get to the combo Remand has always underperform for me. I have never been happy to see it and drawing one card is not likely to help me. Harder counters will.

Because of all the draw power Snapcaster Mage has also been taken down from 4 to 2. Snapcaster Mage is powerful but again the focus is on getting the combo out and slowing down the opponent with Blood Moon. Snapcaster in a mid game card. I hate seeing it early unless I am already in good position or need to bring back a bolt with isn't often. Late game I want my final combo piece. True you can use Snapcaster to bring back a search spell but that still gives my opponent a turn. Most of the draw power comes for sorcery spells meaning I have to play it on my turn. Snapcaster Mage still has its place the draw spells let me see him often and getting extra counter spells are great for the control match up.

Spell Snare Is also a trap of a card to play only running two off and only being able to counter a 2 drop is to situational most cards you want to counter cost 1, 3 or more.

Thing in the Ice Has been play tested but I have never been able to fire it off. It draws some hate which helps for some match ups of for the most part has been underwhelming. Thing in the Ice is a card waiting to be broken but this isn't the right build for it at the time.

Here is a list I was running before the updates The sideboard was a work in progress.

3 Field of Ruin
6 Island
3 Misty Rainforest
2 Mountain
4 Scalding Tarn
2 Steam Vents
1 Stomping Ground
1 Sulfur Falls
4 Blood Moon
3 Deceiver Exarch
4 Kiki-Jiki, Mirror Breaker
4 Lightning Bolt
2 Mana Leak
3 Pestermite
3 Remand
4 Serum Visions
2 Snapcaster Mage
2 Spell Snare
2 Spellskite
3 Telling Time
2 Thing in the Ice
Sideboard:

2 Anger of the Gods
2 Batterskull
1 Crumble to Dust
1 Deprive
1 Disrupting Shoal
1 Electrolyze
1 Grim Lavamancer
1 Harvest Pyre
1 Hurkyl's Recall
1 Izzet Staticaster
1 Jhoira of the Ghitu
1 Keranos, God of Storms
2 Negate
1 Pact of Negation
1 Peek
1 Roast
1 Sleight of Hand
2 Smash to Smithereens
1 Spreading Seas
1 Surgical Extraction
2 Vandalblast