Crystal Gauntlet
With the popularity of magic damage-focused compositions, Crystal Gauntlet is a highly favored item among players. In the current patch 13.8, the development team of Teamfight Tactics has made significant buffs to the Mage system. This has led to an even greater frequency of players combining Crystal Gauntlet.

Moreover, there are many 1-2 cost champions that can effectively use Crystal Gauntlet right now. Names like Lucian, Lulu, Jinx, Ezreal… will deal massive amounts of damage with this item. Therefore, players should combine Crystal Gauntlet as early as possible to ensure snowballing potential for their team composition.
Fire Cloak
In recent patches, a popular trend in building carries has been focusing on sustainability. From the Hacker effect to Bloodthirster, the Hextech Gunblade has become increasingly popular, making sustainability an essential element. Thus, possessing a Fire Cloak has become more important than ever.

Unlike Morello’s Tome, Fire Cloak has a significant advantage in enhancing champion durability. Furthermore, this item will automatically ignite opponents within its radius instead of relying on whether the champion uses their ability or not. This makes Fire Cloak one of the most effective healing reduction items in the current patch 13.8.
Shojin Spear
Alongside Crystal Gauntlet, Shojin Spear also greatly benefits from the Mage buffs. Carries like Neeko or even Sona can make good use of this item. Moreover, the rise of several Star Guardian compositions has made Shojin Spear even more popular.

The reason is that the energy gain effect from Star Guardians interacts with Shojin Spear. Hence, this item will provide Star Guardian champions with abundant energy, allowing them to cast spells continuously. This item is more crucial than any damage items for Star Guardian champions.
Conclusion
Given their perfect synergy or ability to counter strong compositions, Crystal Gauntlet, Shojin Spear, and Fire Cloak are highly favored by players. These will be important items to help players rank up quickly in the current patch.