Garp's Strongest Attack: Galaxy Impact vs Infinitum Explosion

Quick answer

The biggest is Galaxy Impact. It is the largest thing Garp has ever thrown — advanced Armament Haki plus Conqueror's Haki, a shockwave across an enormous radius that caught the Blackbeard Pirates crew-wide (ch. 1080). If the question is scale, it is not close.

The best result belongs to Infinitum Explosion. It is the only Garp technique that has ever finished a top-tier opponent: Rocks D. Xebec, at God Valley, thrown by prime Garp with both fists at "critical mass" (ch. 1165).

But it is not a clean solo record, and we are not going to pretend otherwise. Roger's Hi-no-Kagutsuchi no Eisu struck the same target in the same moment, and Rocks had already been turned into a demon by Imu and worn down. Nothing on the page separates whose attack did what.

So: Galaxy Impact is the biggest. That does not necessarily make it the strongest — and the technique with the better claim is one Garp did not throw alone.

Current through chapter 1191 (Weekly Shonen Jump issue 39, on sale 24 August 2026). No leaks, no raw scans. Spoilers for Hachinosu and the God Valley flashback follow.

The four attacks

Attack	Japanese	Chapter	Haki	What it actually did
Galaxy Impact	拳骨衝突	ch. 1080	Advanced Armament + Conqueror's	Enormous radius, whole crew at once. No named opponent downed
Blue Hole	海底落下	ch. 1081	Armament + Conqueror's	Grabbed Kuzan by the face, drove him down, left a deep hole
Galaxy Divide	拳骨唐竹割	ch. 1088	Armament + Conqueror's	Vertical fissure through Avalo Pizarro and the island structure
Infinitum Explosion	無限拳骨	ch. 1165	Both fists, Armament + Conqueror's at "critical mass"	Finished Rocks D. Xebec — jointly with Roger

How we ranked them, and how far we could check it

Three source layers, the same as the rest of this series.

OFFICIAL PRIMARY VERIFIED is material we opened and read ourselves. Here that is the official ONE PIECE.com entry for Garp, which is the source of his Cross Guild bounty of roughly 3,000,000,000 Berry, his rank — still Vice Admiral, never Admiral — and the epithet 海軍の英雄, Hero of the Marines.

CHAPTER-REFERENCED is a claim traced to a specific chapter and page whose panel we have not read. Every technique description below sits in this layer. Volumes 107 and 114 are outside the free MANGA Plus window, so the chapter numbers here are locators taken from chapter-referenced secondary entries, not panels we checked. That is a real step below a reading, and we would rather say so than imply otherwise.

SECONDARY / SCALING is fan scaling, including ours. It decides nothing.

Two rules specific to this ranking.

Biggest is a different question from strongest. Area of effect, output against one target, and result achieved are three separate measurements. Most rankings collapse them, which is how Galaxy Impact ends up first by default.

A shared finish is not a solo feat. Where two characters land techniques on the same target in the same moment, the outcome belongs to both. We will say what the result was and refuse to split it.

1. Galaxy Impact — the biggest, and the one with no result

拳骨衝突, "Fist Collision". Garp infuses his fist with advanced Armament Haki and Conqueror's Haki and delivers a shockwave punch across an enormous radius, devastating everything in range. It is his opening move on Hachinosu and it hits the Blackbeard Pirates crew-wide (ch. 1080, p. 16–17).

It is genuinely the largest thing in his arsenal, and the panel is the most spectacular of the four. It is also the reason this article exists, because scale is doing all the work in the popular answer.

Here is what it does not have: a name attached to a defeat. Nobody of consequence goes down to it. The description that survives into every reference is "devastating anything in its range" — which is a description of the effect, not of an outcome. Eight chapters later the men who were standing in that radius beat him.

That is not a knock on the technique. It is a statement about what we can and cannot conclude from it.

2. Blue Hole — the best thing he has landed alone

海底落下, "Seafloor Falldown". Garp hardens a hand with Armament Haki, infuses it with Conqueror's, grabs his opponent by the face and slams them downward hard enough to open a deep hole in the ground as they fall (ch. 1081, p. 14–15).

The reason this matters is the target. He used it on Kuzan — his own former student, a former Marine Admiral, and one of the strongest individuals Garp has been shown fighting on-panel. Of the three Hachinosu techniques, this is the only one aimed at a top-tier person rather than at a crowd or a structure.

It also did not end the fight. Kuzan keeps going, and Garp fights on through the rest of the crew. So this is the best solo showing against a named individual, and it is still short of a finish — and it is Kuzan, the man Garp put through the ground here, who lands the decisive blow on him seven chapters later.

3. Galaxy Divide — the narrow one

拳骨唐竹割, "Fist Bamboo Splitter", after karatake wari, the downward vertical cut in kenjutsu. Armament plus Conqueror's, delivered as a shockwave punch that opens a vertical fissure through its target — used on Avalo Pizarro and the Hachinosu skull-face structure he was controlling (ch. 1088, p. 10–11).

Where Galaxy Impact spreads, this concentrates. It is the cleanest demonstration that Garp can put Conqueror's-infused force through a single line rather than across a field, and he threw it after Shiryu had run him through while protecting Koby — crossing the island to land it.

It ranks third because a structural fissure, however impressive, is a smaller claim than putting a former Admiral into the ground.

4. Infinitum Explosion — the best result, and the one he shared

無限拳骨, "Infinite Fist". Garp hardens both fists with Armament Haki and infuses them with Conqueror's Haki at what our source renders as "critical mass", rotates his left arm, and unleashes a barrage of flaming punches (ch. 1165, p. 15–17).

It landed on Rocks D. Xebec — Roger's most formidable rival, and the strongest opponent any Garp technique has ever been aimed at. Rocks went down. On the axis of what did it achieve, nothing else Garp has is in the same conversation.

Three things stop it from settling the question.

Roger fired into the same target, with the same escalation. The finish is Infinitum Explosion alongside Roger's Hi-no-Kagutsuchi no Eisu (火之迦具土 慧士; VIZ: "God of Fire Ace") — and the description of Roger's technique is word-for-word the shape of Garp's: Armament and Conqueror's Haki infused at "critical mass", weapon spinning, then a series of strikes. Two men reaching the same peak in the same panel, into the same target. The manga does not apportion the damage, and neither will we.

The target had been altered, in both directions. Imu had turned Rocks into a demon with "Domi Reversi", which amplified his strength greatly — so this is a harder opponent than baseline Rocks, not an easier one. He had also been fought down to that point rather than met fresh. Both facts matter and they push opposite ways.

The credit in the story is not the panel. The defeat of the Rocks Pirates was entirely credited to Garp, which is where "Hero of the Marines" comes from. That is an in-universe attribution — a piece of World Government record-keeping, and the sort of thing this arc has been busy showing to be unreliable. It is not evidence about a technique.