Yes, you can beat Gilgamesh. He runs at least two phases on the timeline with a weapon-swap pattern that changes which elemental bar is active. Run a four-character lineup that covers stagger paint, physical close, defence and healing, sweep every enemy in one turn to open the Extra Phase, and pick the matching Resonance finisher from the SELECT RESONANCE wheel.
On this page
What the fight looks like
Gilgamesh swaps weapons between phases. Each weapon changes which elemental bar is highlighted, which means you must keep an eye on the Stagger Gauge and weakness window at the start of every round. Hitting the active weakness drains the gauge fastest and unlocks the bonus damage previewed before you commit the move.
Recommended party and Vision setup
Use a four-character lineup that covers stagger paint, physical close, defence, and healing.
The goal is to Sweeping Stagger every enemy in one turn so the Extra Phase opens; once it does, pick the Vision's Resonance finisher on the SELECT RESONANCE wheel whose element matches the remaining weakness. The full Vision roster and upgrade XP table live on the Visions locations and upgrade page.
Recommended party — step checklist
Stagger painter
Tronn or Terra — apply the highlighted elemental weakness on the bar.
Done when: Selected Vision's element matches the active weakness bar.
Physical closer
Cloud or Clive — capitalise on the Sweeping Stagger with Physical Damage scaling.
Done when: Stun proc lands on the crit window.
Defender
Warrior of Light or Charlotte — Provoke on hit keeps the party stable.
Done when: Provoke stacks are refreshed before phase-two.
Healer
Y'shtola or Rhea — keep the four-slot party alive through phase two.
Done when: Healing Power scaling gear is equipped before the fight.
Step-by-step plan
Open phase one on the active weakness
Use the stagger painter's elemental weakness spell on the highlighted bar.
Done when: Stagger Gauge starts dropping ahead of turn 2.
Hold the Limit Burst for the stagger break
If the gauge is close to breaking, save the physical closer's Limit Burst for the stagger break rather than spending it on the lead-in.
Done when: Limit Burst meter is full at the gauge break.
Sweep to open the Extra Phase
Sweep every enemy in the same turn and pick the closest matching Resonance finisher from the SELECT RESONANCE wheel.
Done when: Extra Phase triggers within the first turn.
Re-paint in phase two
Read the new weapon bar immediately and re-paint with the matching Vision before the healer burns a turn.
Done when: Healer turn stays available for Raise or Arise.
Save Raise for the drop
In phase two, keep the healer's Raise or Arise for the moment a party member is dropped; do not spend heals on chip damage.
Done when: Raise is reserved for the first KO.
Repeat and finish
Repeat the Sweeping Stagger / Resonance loop until Gilgamesh is staggered twice in one round, then finish.
Done when: Boss HP hits zero after the second double stagger.
What to avoid
Four copies of Cloud
No element spread — the weakness swap punishes this lineup.
Best for: Light chapter trash only.
Limit Bursts on trash
Spending Limit Bursts before phase two leaves you with no burst to close the fight.
Best for: Trash mobs only.
Ignoring the previewed gauge
The Stagger Gauge preview tells you whether the round will stagger or save — skipping it costs a turn.
Best for: Repeatable mistakes.
After Gilgamesh
When the fight is over, move on to trophy #40 My Name Is Ultima... if you have not yet beaten the Ultima Weapon superboss; both are tracked on the Colosseum and endgame path.