Last updated: October 12, 2026
Rainbow EXP IV on Ghost III is best farmed with a four-slot comp built around two AoE nukers, one damage buffer, and one staller — first nuker down on the inside corner of the second platform before wave 3, buffer loaded with range and speed rather than raw damage. That build clears in roughly 4:00–4:30 per run, which is about 12–15 clears an hour and typically 25–30% more EXP per hour than the slower five- and six-slot builds most players default to. The sections below break down the comps, the orb placements, and the wave-by-wave timings that make that number repeatable rather than lucky.
Quick answer: Our top pick in 2026 is the Rainbow EXP II — our #1 rated choice. See the full ranked comparison, alternatives and buying advice below.
What a Rainbow EXP IV Clear Actually Pays Out
The stage runs 15 waves with a mid-boss at wave 8 and a final boss at wave 15. Rewards scale with waves cleared, and there is a separate no-leak bonus that pays out only if nothing reaches the exit — that bonus is the single biggest reason players fail to hit their expected EXP per hour. Per the in-game stage description, the payout also scales with how much time is left on the clock when the final boss dies, which is why clear speed matters as much as clear reliability.
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View on AmazonAbsolute EXP values are printed on the pre-run reward screen and have been adjusted in past balance patches. Check that screen before committing to a long farm session; the relative numbers below stay stable even when the absolute ones move.
| Stage | Relative EXP per clear | Typical clear time | Best for |
|---|---|---|---|
| Rainbow EXP II | 1.00x (baseline) | 2:30–3:00 | Warming up, testing new orbs |
| Rainbow EXP III | ~1.35x | 3:15–4:00 | Accounts that clear EXP IV inconsistently |
| Rainbow EXP IV | ~1.55x | 4:00–4:30 (tuned comp) | Established accounts farming for level cap |
| Rainbow EXP IV, failed run | 0.4x–0.6x (partial) | 5:00+ | Nobody — fix the wave 8–12 gap first |
The Three Comps That Farm It Well
See also: BDO Class Tier List: Best Classes Ranked for PvE & PvP • Anime Vanguards Codes: Active List & Rewards Guide
You do not need the newest banner unit to farm this stage. You need the right role coverage in the right slots. Every workable Rainbow EXP IV comp solves four problems: clearing trash waves without spending the boss-killer’s cooldown, holding the mid-boss at wave 8, holding the final boss at wave 15, and doing both without leaking.
| Comp | Best for | Core roles | Typical clear | Main trade-off |
|---|---|---|---|---|
| Two-Nuke Standard | Most accounts past mid-game | 2 AoE nukers, 1 buffer, 1 staller | 4:00–4:30 | Needs both nukers at a usable upgrade tier |
| Budget Solo | Newer accounts, no top-tier AoE | 1 AoE, 1 single-target, 2 economy/support | 5:30–6:30 | Slower, and leaks if wave 12 is misplayed |
| Speed Farm | Maxed accounts chasing EXP/hour | 2 AoE nukers, 1 buffer, 1 hybrid | 3:00–3:20 | Zero margin — one late placement ends the run |
Two-Nuke Standard (best overall)
This is the comp to build toward if you are between mid-game and near-max. One nuker covers waves 1–7 on the left lane while the second covers waves 9–15 on the right, and the buffer sits centrally so its aura reaches both without repositioning. It suits players who can reliably upgrade the first nuker to its second-to-last tier before wave 6. The trade-off is orb-hungry: you are feeding two damage dealers instead of one, so a bad orb roll hurts twice as much.
Budget Solo (best for newer accounts)
If your best AoE unit cannot one-cycle the wave 8 mid-boss, do not force the two-nuke comp — you will spend more time in failed runs than in clears. Run a single AoE unit for trash, a single-target unit parked on the mid-boss spawn path, and two economy units that you sell at wave 9 to fund upgrades. It is 60–90 seconds slower per run, but a completed 6:00 run beats a failed 5:00 run every time. The trade-off is that this comp is genuinely fragile at wave 12 if your single-target unit is under-upgraded.
Speed Farm (best for maxed accounts)
Once your nukers are at max tier and you have three or more damage orbs, the speed comp trades safety for throughput. You skip the staller entirely and rely on the buffer’s speed aura plus manual ability timing to kill bosses before they reach the exit. It suits players who already know the wave timings by heart. The trade-off is real: there is no recovery slot, so one missed placement at wave 8 ends the run.
Orb Placement, Slot by Slot
Orb names and caps vary between versions of the stage, so treat the categories below as roles rather than exact item names. The placement logic holds either way.
- Damage orbs go on the left-lane nuker first. The left lane sees the densest early waves, and damage scales better than range when enemies are already inside your coverage. Reason: a range orb on a unit that is already hitting everything is a wasted slot.
- Range orbs go on the buffer before the right-lane nuker. The buffer’s job is coverage, not damage. Giving it range so its aura touches both lanes removes the need to reposition it mid-run, which is the most common cause of a wave 9 leak.
- Speed or cooldown orbs go on the right-lane nuker. The right lane is lighter on trash but heavier on bosses, and boss damage is a function of how many cycles you fit into the boss’s walk time, not how hard each hit lands.
- Do not orb the staller. In the standard comp the staller exists to buy two or three seconds at wave 12. Orbs spent there are orbs not spent on the units that actually end the run.
- Keep one spare orb slot empty if your version allows it. Mid-run swaps at wave 8 are common, and a full loadout locks you out of them.
Wave Timings: When to Place, When to Spend
The clock below assumes the Two-Nuke Standard comp and a 4:15 clear. If you are running Budget Solo, add roughly 25 seconds to every checkpoint after wave 6.
| Wave | What spawns | Action | Clock target | Why |
|---|---|---|---|---|
| 1–2 | Light trash, single lane | Place left nuker on the inside corner of platform 2 | 0:00–0:35 | Inside corner covers both approach angles with no repositioning |
| 3–5 | Trash plus first armored units | Place buffer centrally; upgrade left nuker twice | 0:35–1:30 | Armor arrives at wave 4; raw damage without upgrades stalls out |
| 6–7 | Two-lane split | Place right nuker on the outer corner facing the spawn | 1:30–2:10 | Outer corner buys ~1.5 seconds of extra fire time per enemy |
| 8 (mid-boss) | Single armored boss, slow walk | Burn abilities here; sell economy units if running Budget Solo | 2:10–2:45 | Boss has no escort, so this is the cheapest place to spend cooldowns |
| 9–11 | Fast trash, both lanes | Place staller at the final choke; upgrade both nukers | 2:45–3:40 | Fast units slip past AoE sweeps; the choke re-concentrates them |
| 12–14 | Mixed waves with shielded units | Hold abilities unless a unit reaches the last quarter of the path | 3:40–4:05 | Shields break AoE chains; panic-spending here loses wave 15 |
| 15 (final boss) | Boss with two escorts | All abilities, staller on the boss’s path, not the escorts | 4:05–4:30 | Escorts die to AoE anyway; stalling the boss is what saves the no-leak bonus |
The Math: EXP Per Hour, Not EXP Per Run
Most players optimize the wrong number. What matters is cycle time — clear time plus the time it takes to requeue. Assume, for the sake of the calculation, that your pre-run screen shows 12,000 EXP for a full clear with the no-leak bonus.
- Speed Farm: 3:10 clear + 0:35 requeue = 3:45 per cycle. That is 16.0 cycles per hour, or roughly 192,000 EXP/hour.
- Two-Nuke Standard: 4:15 clear + 0:40 requeue = 4:55 per cycle. That is 12.2 cycles per hour, or roughly 146,000 EXP/hour.
- Budget Solo: 6:00 clear + 0:45 requeue = 6:45 per cycle. That is 8.9 cycles per hour, or roughly 107,000 EXP/hour.
The gap between the speed comp and the standard comp is about 46,000 EXP/hour — a full extra run every 15 minutes. But that only holds if the speed comp clears reliably. At a 75% success rate, the speed comp drops to roughly 144,000 effective EXP/hour, which is statistically identical to the standard comp at 100%. That is the whole argument for the standard build: it is the fastest comp you can run without losing runs.
How to Pick Your Comp
| Your situation | Run this comp | Orb priority | Expected clear |
|---|---|---|---|
| Best AoE unit below second-to-last tier | Budget Solo | Damage on single-target, range on AoE | 5:30–6:30 |
| Two usable AoE units, fewer than 3 damage orbs | Two-Nuke Standard | Damage > range > speed | 4:00–4:30 |
| Everything maxed, no-leak rate above 90% | Speed Farm | Speed > damage > range | 3:00–3:20 |
| Farming while doing something else | Two-Nuke Standard, auto-fire on | Range on both nukers | 4:45–5:15 |
| Failed wave 12 twice in a row | Budget Solo until it clears clean | Damage on the boss-killer only | 5:30–6:30 |
Mistakes That Cost You the Run
- Over-investing in the staller. It is a two-second insurance policy, not a damage unit.
- Placing the buffer before the first nuker. You lose the first two waves’ positioning advantage and end up repositioning mid-run.
- Spending abilities at wave 11. Wave 11 is fast but squishy; abilities belong at 8 and 15.
- Ignoring the no-leak bonus. On this stage it is a meaningful share of the payout — a 5:00 clean run beats a 4:00 run that leaks one unit.
- Chasing the newest unit instead of the newest orb. Role coverage wins this stage; a single high-tier damage orb on the right unit changes clear time more than most unit swaps.
Frequently Asked Questions
Is Rainbow EXP IV on Ghost III better than Rainbow EXP III for farming?
Per clear, yes — roughly 1.55x the EXP of the baseline Rainbow tier. Per hour, only if you clear it cleanly. If your success rate on EXP IV drops below about 70%, Rainbow EXP III will out-earn it because failed runs pay partial rewards and cost the same requeue time.
What is the minimum I need to clear Rainbow EXP IV reliably?
Two units that can each handle a full lane of trash, one buffer, and enough damage orbs to push your right-lane nuker through the wave 15 boss. Accounts without a second AoE unit should run the Budget Solo comp instead of forcing the standard build.
Do I need a staller in the comp?
Not if you clear the final boss before it reaches the last quarter of the path. Most players do, which is why the standard comp keeps one. The staller earns its slot at wave 12 and wave 15 and is largely idle otherwise, so do not spend orbs on it.
Why does my run keep failing around wave 12?
Wave 12 introduces shielded units that break AoE chains, so your nukers stop clearing the whole group at once. The fix is usually a single-target unit parked on the choke point rather than more AoE, plus holding your abilities until a unit actually reaches the final quarter of the path.
How much EXP per hour should I expect?
With a clean Two-Nuke Standard comp, roughly 12 cycles an hour; with a maxed speed comp, up to 16. Multiply your cycle count by whatever your pre-run screen shows for a full clear — that screen is the authoritative number and it changes with balance patches.
Do patches change the wave timings?
Wave counts and spawn types have stayed stable, but reward values and unit balance have been adjusted in past patches. Re-check the pre-run reward screen and run one test clear after any patch before committing to a long farm session.
Ready to decide? Our #1 pick for 2026 is the Rainbow EXP II.
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