Xaihi Arknights Endfield: the best build to heal and boost your Cryo team

Xaihi is one of the best Cryo supports in Arknights Endfield, able to both heal, provide buffs, and speed up ultimate rotations. When played and geared correctly, he becomes a core piece of Cryo compositions, while still remaining very effective in more accessible teams focused on physical damage or elemental reactions. Here’s how to get the most out of him without wasting resources on unnecessary choices.

Xaihi is primarily played as a Healer / Buffer, with a clear priority on Willpower to increase the strength and consistency of his healing, followed by Intelligence to improve his buffs and energy generation. His role is not to deal damage, but to let the rest of the team play faster, longer, and more efficiently, especially in Cryo-oriented setups.

For weapons, Fluorescent Rock is more than enough in the early game and is easy to obtain through chests. In later progression, Knightly Virtues remains the best option thanks to its strong support-oriented bonuses. If you’re looking for a free or mid-tier alternative, Detonation Unit, Monaihe, or Zealotry at Will all perform very well depending on how far you are in the game.

When it comes to armor, the logic is simple: survivability and utility. Early on, Miner pieces followed by Mordvolt gear offer excellent value for their cost. In mid game, upgrading to G1 versions greatly improves Xaihi’s stability. In endgame, the Eternal Xiranite set combined with the LYNX Cuirass maximizes both durability and energy regeneration, making long fights extremely safe.

For skills, the upgrade order is very straightforward. Prioritize Stack Overflow to strengthen his ultimate, then Service Denial, followed by Trial by Fire, and finish with Cooling. Xaihi is perfectly playable at Potential 0, but aiming for Potential 1 or 5 provides noticeable comfort thanks to improved Arts amplification.

In a premium team, Xaihi shines alongside Yvonne, Gilberta, and Alesh, where he ensures survivability and speeds up all Cryo rotations. For a more accessible version, a lineup with Estella, Fluorite, Akekuri, and Xaihi remains very solid and requires far less investment.

Finally, make sure to prepare his materials in advance, especially Proto-Assemblies, Proto-Prisms, and T-Credits, as Xaihi truly becomes impressive once fully built. Properly optimized, he turns any Cryo team in Arknights Endfield into a perfectly oiled machine.