Revision 1

The Roller is the cheapest fighting body in the Xol roster and the busiest one, a Tier 1 ground unit that arrives two at a time from the Gyroforge for 50 hexite. Eighty health and a four damage beam do not look like much on their own, and they are not meant to. A Roller is simultaneously a skirmisher, a passenger, a projectile and a component: two of them merge into an Echo, three into a Gravitron, one transforms into a Havoc, eight ride inside that Havoc as cargo, and five can be picked up and thrown by an Eradicator. No other unit in the game is folded into so many other things.

When it is not firing the Roller collapses into a sphere and rolls, which doubles its movement speed. That single behaviour is what makes the merge economy work, because banked Rollers can cross a map faster than they can fight across it.

Figures below describe the September 2026 Early Access build, the one carrying the identifier ZS.c36778, and they move with the weekly patch cadence. Roughly half the versus roster had a stat touched in the fortnight before that build was captured, so treat every number here as dated rather than permanent.

Stat Block

Weapons

The Roller carries two mutually exclusive weapons, one per mode. The Molten Core decides which is live.

Abilities

The entity record lists no activated ability and no passive for the Roller. Its two behaviours, the rolling sphere and the mode switch, are properties of the unit and of the Molten Core rather than buttons on a command card.

Upgrades

There are no Roller specific upgrades. Two systems reach it anyway. The Molten Core spends 50 energy to put a Roller into molten mode permanently, and the World Forge carries six army wide upgrades of which a player picks three, each with two ranks, doubled for units standing near the Forge.

Conversion Costs

Replicate is the Xol conversion mechanic, paid out of the same top bar power pool as the Grell Infuse and the Legion Reanimate. Rather than buffing a unit it copies one, producing a second body from an eligible ally. Since the balance pass of August 11, 2026 it also works on molten units, at twice the usual power cost. Eligibility is not universal, and the tags on a unit record are what say which of the three conversions apply. The Roller is eligible for all three at an identical 1.25 power each, the cheapest conversion price on the faction and one of the cheapest in the game. Copying a Roller for 1.25 power is close to free, which is part of why the unit is treated as a resource rather than as a casualty.

Role

Read the Roller as banked material. Four damage on a 0.4 second cycle is ten damage a second, respectable for 25 hexite but irrelevant against anything with armour: two points of enemy armour cuts each hit to two, and three points takes it to the floor of one. Armour is a number as well as a type. It subtracts a flat amount from every incoming hit with a floor of 1 damage, so it blunts many small hits far more than one large one. A Roller ball therefore does well against unarmoured light targets and badly against the heavy ones, which is exactly the split the merge tree is designed to fix.

Molten changes the unit completely. Shockwave trades range 2 for range 1 and the ability to hit air, and pays for it with 50 damage on a one second cycle, doubled against Medium armour and splashed at full value over 3 range. A molten Roller that reaches a clumped Medium armoured line is dealing 100 damage per target per second. Getting it there is the whole problem, and the ability to roll at double speed is the answer the faction gives.

The other use is logistics. Rollers ride inside a Havoc, get thrown by an Eradicator and arrive Overclocked, and merge upward when the composition needs to change. Unmerge has been free on a 20 second cooldown since August 11, 2026, so splitting a merged unit back into Rollers is a mid fight decision rather than a last resort.

Faction Context

The Gyroforge is one of three Tier 1 production buildings, alongside the Spectral Foundry and the Xyther Assembler, and each of them unlocks Tier 1 mercenary hiring and leads to the Molten Core. Building a Gyroforge therefore commits a player to the Roller line, and through it to the Echo, the Gravitron and the Havoc, since all three are assembled from Rollers rather than produced directly. See Units for how the shared stat block is read across factions and Resources and Economy for how the top bar power pool fills.

Counters

Balance History

Notes

The roster record for this unit is COMPLETE. Every core field is published.

One internal disagreement is worth flagging. The Molten Core building text summarises the molten Roller as losing its weapon and exploding on contact, damaging and slowing enemies. The unit record instead gives the molten form a named weapon, Shockwave, with full damage, range, cooldown and splash figures, and records no slow. Both descriptions come from the same data release. The named weapon is the more specific record and is what the table above reports, but the discrepancy is unresolved and a slow effect may exist that the weapon entry does not carry.

One naming trap is worth stating plainly: there used to be a separate Harvester armour type, and it was deleted on August 11, 2026 and folded into Medium. Every bonus that keyed off it was rewritten to read against Medium armour on the same day. The armour type no longer exists in any form, whatever a unit happens to be called.

Per unit numbers are drawn from a community maintained entity catalogue that the studio links from each of its own faction pages. It is the only place the full stat block is published, and it is not a studio document, so the figures are best read as careful community documentation of a build rather than as an official specification. Dated balance notes, by contrast, come straight from the studio patch posts.