In the world of the Heterocyclic City adventure, the enhancement of a character's combat power is not achieved through just one method, and equipment pairing is a very important aspect, especially understanding which S-grade weapons in the Heterocyclic series are essential. As the core carrier of output, the orange arc disk is the most effective among high-level weapons, capable of elevating everyone's combat power to the ultimate level. However, for many beginners who have just entered this wonderful world, such weapons are not that easy to find.

Let's first talk about Good Dog Travels Far. Its base attack bonus is quite impressive, with a fixed value of 31 points and an 18% percentage increase, placing it at an above-average level among S-grade weapons. However, its true charm lies in its unique core characteristic phase effect. After the wearer releases a phased skill, their attack power will increase by 10% for the next 20 seconds. If the enemy is affected by the control effect attached to the skill, there will be an additional 5% attack increase. It is particularly suitable for those with group control skills, allowing you to unleash powerful crowd control skills, restraining the enemy while significantly enhancing your own attack power. More pleasantly, if there is an Ultimate-level spirit in the team, like the super-strong Medical Officer in its Ultimate form, the entire team can receive an extra 5% attack bonus. Although the effects cannot stack, the duration is sufficient to keep the entire team in a strong combat state throughout the battle.

Next, let's look at Rest Day, a uniquely featured weapon that specifically benefits the user, focusing on efficient solo monster grinding. Once entering the mysterious Eclipse state, the wearer's attack power surges by 30%, and for each successful kill of an enemy unit, they gain 2 precious field quality points, stacking up to 5 times. This means that during the active period, your output stability will be greatly guaranteed, whether for daily resource collection tasks or challenging monster hunts. With it, you can swiftly clear all monsters and provide stable resource recovery for subsequent battles. However, it has a 300-second cooldown, requiring players to use it precisely.

Similar to it is The Moment of Yore, whose base attack is 3 points higher than Rest Day. It also boosts attack power during the Eclipse state, but with a 24% increase, and each kill adds 2 quality points. However, the special effect is limited to the user and cannot be shared with teammates. In intense PvP battles, especially in solo duels, this weapon provides more stable individual benefits and is suitable for various scenarios.

Headless Iron Pilot is one of the most popular S-grade arc disks, and it is the best equipment for the emotionally compatible character Nana. Its core effect directly boosts attack power by 16%, and the subsequent benefit is an extra 20% increase in normal attack damage for 20 seconds, with this effect stacking up to 2 layers. This means that in prolonged battles, its damage boost can stably cover the entire fight, especially for characters like Nana who rely on normal attack combos. Her five-segment normal attack has a stunning effect, and when paired with the Headless Iron Pilot's powerful damage-boosting ability, the burst damage will see a significant and stable increase. As you improve your weapon mastery, the damage bonus can even climb to 32%. When you release the Transform Skill or Extreme Move, your output capability is further enhanced.

There is also Mephisto, an arc disk that emphasizes teamwork and control. Its core mechanism revolves around the Extreme Rail Attack. When the wearer decisively releases the Extreme Rail Attack, and if the enemy is affected by control effects such as stun or slow, Mephisto's attack power boost will be further enhanced, and this benefit can stack up to 3 times. As you gradually improve your weapon mastery, its charging rate will increase from the initial 24% to 48%, providing continuous and powerful suppression for the team in battles. Therefore, this weapon is very suitable for use with characters who have strong control skills.

In summary, the introduction to the S-grade Heterocyclic weapons covers the currently available high-quality equipment. When choosing an S-grade arc disk, it is important to deeply integrate your gaming style. To maximize the power of these top-tier weapons, proper pairing is crucial. If the equipment effect does not match the weapon effect, the resulting bonus will be minimal.