@Marske.
First of all, I'm sure I will not play the exact list posted over here at all

IMHO, changes done don't fit my style and TPS: Gifts missing, too many mana fonts, FoF missing, MJar missing.
* It is crucial to understand such a deck, smother and with a lower mana curve, can be more resilient in a field ( such as one played here ) full of Denial.decks. Minor the cc, minor the trouble around resolving spells. Intuition let him grab tutors, forces, rituals and achieve threshold and a cool YWill faster than ever. These are most interesting aspects around Intuition addition.
Retrospectively speaking, I will add Intuition#1 in my own build instead of Imperial Seal, my own MOST debate maindeck slot. Results and considerations about this card put on me the needed pressure and, after testing, I can assure you it is worth his own addition.
* Read the Runes is a concrete "no" for me: another YWill enhancer in a deck FULL of tools to power up and resolve a quick & lethal YWill seem too much, too redundant. My own sensation is about rely on graveyard a lot, unbalancing TPS asset too much. Anyhow, his own report stated about how cool and strong is to set up quick YWill and win soon after. Correctly hated out, I'm sure he will have had an hard time repeating the same winning routine over and over.
* Tinker for Inkwell is his own sideboard addition against Fish.dec and Sundering Titan the other staple Tinker target against BLlueBased multicolored decks. Not much of a shame about seeing those Robots in sideboard instead of maindecked: his own plays and TPS in general, performed really well against the entire field, missing the needed "groove" and "better winning options" only against those opponents. These are his own words: Fish can be defeated by Inkwell and even against bicolor or three color decks, putting additional pressure on their own mana base with Titan can swing unwinnable games: killing their lands will block future come back and putting in play an almost untouchable Robot can be game over against proper decks. Putting them in side can be tricky if they will maindeck Extirpate or other spells will let you know opponents list. Post side, you can surprise them with different and unknown winning options, leaving them with their pants down
* From my own point of view, additional tutors, low cost bombs and great skills can be the golden points being able to summarize his good result.
I'm going to read & write about this tournament, here and in the proper section, because this list isn't the only one doing well during that weekend.* For references, this is my own actual test list.
(28)
10 Artifacts
6 (3+3) Fetchlands
5 (4+1) Rituals
4 (2+2) Basics
2 Duals
1 Academy
(7)
1 Intuition
1 MScroll
1 Tinker
1 GrimT
1 VT
1 DT
1 MT
(12)
1 Brainstorm
1 Bargain
1 Twister
1 Ponder
1 Desire
1 Necro
1 Recall
1 YWilll
1 Walk
1 Gifts
1 FoF
1 Jar
(11)
4 FoW
4 Duress
1 Rebuild
1 Chain
1 Mis-D
(2)
1 ToA
1 DSC