Most Mercenary players in Path of Exile 2 version 0.5 seem to reach for grenades the second they unlock them, and yeah, I get it. Big bangs feel good. Still, there's a cleaner way to tear through the campaign if you'd rather keep moving than stand around lobbing explosives. A straight ballistic crossbow setup feels sharp, fast, and weirdly safe once it clicks, especially when you're putting upgrades together with PoE 2 Currency and focusing on raw shot damage instead of spreading your build thin. You're not playing turret. You're skating around the fight, swapping ammo, freezing threats, and firing almost nonstop.
The build starts to make sense once Cycle Crossbow Ammo becomes part of your hands, not something you think about every few seconds. Fragmentation Rounds are the early workhorse. They chew through messy packs, break up tight groups, and make those first campaign zones feel much less clunky. Then Permafrost Bolts come online, and the whole pace changes. You'll freeze more often than you expect, and those shatters do a lot of the cleaning for you. It's not just damage either. Frozen enemies aren't swinging, casting, or body-blocking you in a doorway. Against crowded fights like Xylucian, the Chimera, or Captain Hartlin, that matters more than another flashy grenade ever could.
Skipping grenades means you can't rely on easy area denial, so your feet have to do some of the work. That's where Wing Blast earns its place. The little Wyvern shift feels strange the first time, then it becomes the button you trust when the arena gets ugly. You jump back, shove enemies away, and sometimes land a heavy stun on targets that were already set up for it. The Power Charge chance is a nice bonus, but the real value is space. Boss winds up a slam? Wing Blast out. Ground effect under your boots? Gone. It lets you keep shooting without turning every fight into a panic roll simulator.
What I like most is how steady the build feels from the early acts onward. The Bloated Miller and Beira of the Rotten Pack become simple kiting checks once you stop overcommitting. Fire, swap, freeze, move. That rhythm carries into Act II, where the Vastiri Outskirts start asking more from your gear and positioning. Azarian, the Forsaken Son punishes lazy movement, while Asinia, the Praetor's Consort can be annoying if you let her dance around for free. With cold ammo and smart spacing, you can slow the whole fight down. You're still under pressure, but it doesn't feel like you're losing control.
This setup isn't about pretending grenades are bad. They're strong. It's more that the pure crossbow style gives the Mercenary a different kind of confidence. You spend less time planting damage and more time creating it on the move. By the time you're dealing with late campaign chaos, including Doryani's lightning-covered arena, that habit pays off. Good weapons, sensible supports, and upgrades bought with cheap poe 2 currency can push the build a long way, but the real trick is staying loose. Don't stop too long. Don't get greedy. Keep the bolts flying and let the freezes do their job.