Is Kroz Wallbreaker Worth Fusing?

The Kroz Wallbreaker fragment fusion is live, and it lands right between the TMNT collaboration and a very busy December schedule. Players are tired, shards are low, and silver is stretched. So the big questions are: is Kroz actually worth your resources, and how should you approach this fusion without burning out before Christmas?

This article breaks down his kit, explains where he’s strong, and walks you through a practical plan for tackling the calendar, with a particular focus on the Black Friday summon window.

Kroz is a Legendary Attack champion for the Ogryn Tribes, built entirely around bombs:

• Pulverizing Pummel (A1) hits a single target three times, with a chance to reduce the detonation countdown of all [Bomb] debuffs on that target by one turn and a chance to [Stun]. This gives him consistent single-target control while speeding up your bomb damage.
• Battlefield Sapper (A2) is his main setup skill: an AoE that places two [Bomb] debuffs on each enemy that blow up after two turns, then fills his Turn Meter by 25% for every enemy with a bomb. In theory, this almost behaves like an extra turn after he’s placed bombs.
• Mangonel Maul (A3) hits all enemies, can reduce the detonation countdown of all bombs by one turn, and has a good chance to place [Block Active Skills] for two turns. This is where Kroz really punishes enemy teams – fast bomb explosions plus heavy control.
• Bomb Breacher (Passive) pushes all allies’ Turn Meters by 5% every time a bomb detonates, and has a 20% chance to give Kroz an instant turn whenever anyone dies to a bomb. When it procs, he can quickly re-apply bombs or chain his control.
• Aura: 30% Ally ATK in all battles – a solid all-round aura for bomb and general damage teams.

Kroz is especially appealing if you don’t already own a strong bomb champion. He’s a big upgrade for Ogryn Faction Wars, very useful in Siege and Tag Team Arena for cracking tanky defenses, and has some potential in niche PvE bomb strategies. The downside is that, right now, his A2 gives Turn Meter rather than a true extra turn, which makes his “place bombs then immediately reduce their countdown” combo less consistent than intended. If Plarium convert that Turn Meter boost into an extra turn or increase it significantly, he becomes a near-Gnishak-tier bomb nuker. Even without a buff he’s still a strong option for accounts that lack bombs or struggle with Ogryn.

There are 130 fragments available in total, but 20 of those come from tournaments that many players will realistically miss. Functionally, you’re looking at 110 “reasonable” fragments, which means you can safely skip 10 fragments and still complete the fusion. Your whole plan should be built around deciding which events you’re comfortable skipping without overspending shards, energy, or silver.

In broad terms:

• You must secure at least 90 fragments outside of summon events.
• Aim for 100+ to give yourself a safety buffer in case you miss a day or fall short on points.
• The two big decision points are the Summon Rush and the Champion Chase tournament, plus how deep you go into Gear Hunters and Champion Training.

There are two shard-based events: a Summon Rush and a Champion Chase. You can only afford to skip ten fragments total, so you cannot ignore both.

The Summon Rush is the more traditional “spend raw shards” event. In most fragment fusions it’s the more painful one, because the top thresholds are often built around multiple Sacred shards. The smart baseline plan for most accounts is to aim for the lower Summon Rush milestone (5 fragments), and only push to the higher (15 fragments) if the points requirement is unusually generous.

The Champion Chase is where this fusion becomes interesting. It runs for four full days over Black Friday, which strongly hints at something beyond a standard 2x. Last year’s equivalent fusion had a multi-shard 2x setup across the whole weekend, and it’s very reasonable to expect something similar again: multiple days of boosted ancients, voids, sacreds and possibly primals, potentially with 15x spotlights layered on top.

Because Black Friday usually brings the best value packs of the year, spenders in particular will find Champion Chase much easier to complete than usual. Even for low-spend or free-to-play players, a multi-shard 2x weekend makes it easier to hit the point threshold with whatever type of shard you’ve stockpiled.

Recommended approach:

• Default plan: low-ball the Summon Rush for 5 fragments, then commit to getting the full 15 from the Champion Chase during the Black Friday 2x weekend.
• Alternative plan: if Summon Rush requirements appear very low (for example, the extra 10 fragments are only a couple of reasonable Sacred shards beyond the 5-fragment mark), you can consider pushing Summon Rush to 15 and taking only 5 from Champion Chase. This option is better if you are very short on ancient/void shards but have a few Sacreds saved.
• Keep your shard stash and spending habits in mind, but in most cases Champion Chase is the event you want to lean into.

The main energy sinks are:

• Three Gear Hunters events (essentially Dungeon Divers).
• Fire Knight, Dragon, Ice Golem and Spider tournaments.
• One big Champion Training event.

Gear Hunters events demand a lot of dungeon energy; there are three of them, and you’ll want to line them up with dungeon tournaments to double-dip your energy. Dungeon tournaments themselves are fairly standard, but your total energy requirement across the whole fusion is substantial.

A sensible progression path through the event looks like this:

1. Start with Fire Knight overlapping Gear Hunters 1. This lets you push your Fire Knight points while feeding the first Gear Hunters at the same time.
2. Move into Champion Training once Fire Knight is under control. You can start some Champion Training earlier if the Sunday squeeze is too tight, but the key is to keep it ticking over rather than leaving everything to the last day.
3. Shift into Dragon as Gear Hunters 2 kicks in. This is the prime overlap: heavy Dragon farming that simultaneously pushes Gear Hunters points.
4. After Dragon, finish any remaining Champion Training points, then swap across to Ice Golem as Gear Hunters 3 begins.
5. Finally, push Spider while Gear Hunters 3 is still active or immediately after it ends if you need extra artifact drops or silver.

The overall flow is Fire Knight → Champion Training → Dragon → Champion Training clean-up → Ice Golem → Spider, with Gear Hunters overlapping each dungeon phase where possible. This keeps your energy focused on one primary target at a time and avoids scatter-farming.

Champion Training is one of the easiest events to underestimate. To avoid a stressful last-minute grind, you should:

• Pre-level food champions in campaign before the event starts, especially 3- and 4-stars sitting at level 1.
• Have a clear plan for which real champions you want to invest in (Kroz himself later, plus any key dungeon or Siege units you’re building).
• Use brews early to get low-rarity food out of the way, then focus your energy on campaign farming and dungeon overlap during the event window.

Gear Enhancement events are equally punishing, usually demanding somewhere around 15–20 million silver per event to be comfortable. For three gear enhancements you should ideally enter the fusion with 45–60 million silver saved. If you don’t have that much, you must be disciplined about selling poor gear constantly while you run dungeons and Spider.

Don’t leave all three gear enhancements to chance – pre-select sets you actually care about (Speed, Savage, Stone Skin, etc.), lock your best pieces, and be ready to invest during those windows rather than random upgrading throughout the fusion.

You should strongly consider completing the fusion if:

• You don’t own Gnishak or another top-tier bomb champion.
• You’re stuck in Ogryn Faction Wars and need damage plus control to push towards 3-stars.
• Siege and Tag Team Arena are priorities for you, and you want a dedicated bomb solution for certain defensive setups.
• You’re comfortable investing into the Champion Chase over Black Friday and have enough energy/silver to survive three Gear Hunters and three Gear Enhancements.

You might be better off skipping or soft-committing (grabbing some fragments for a future fragment swap) if:

• You already own Gnishak and strong alternatives, and Kroz doesn’t add anything unique to your account.
• You’re heavily resource-drained from previous events and want to save for a near-guaranteed top-tier Christmas fusion and a big Titan event in December.
• You don’t enjoy Siege or Faction Wars and mainly care about classic PvE where bombs are niche.

The Kroz Wallbreaker fusion sits in a tricky spot: he’s a powerful bomb champion with great Ogryn and Siege value, but his current A2 mechanics make him harder to use than Nishak, and there’s a huge wave of Christmas content on the horizon. With careful planning, especially leveraging the Black Friday Champion Chase and overlapping Gear Hunters with dungeon tournaments, you can complete this fusion without completely draining your account.

If you need a strong bomb nuker or help in Ogryn Faction Wars and Siege, Kroz is absolutely worth serious consideration, particularly if Plarium decide to tweak his A2 into a true extra turn. If your account is already stacked with bomb options and you’re eyeing December’s Titan event and Christmas fusion, it’s perfectly reasonable to skip. But make that choice deliberately, with your shards, silver, and long-term goals in mind.