Attack of Gilgamesh

Gilgamesh's Offensive is a Trial in Final Fantasy Brave Exvius. The player faces Gilgamesh.

Battle
Gilgamesh can attack up 8 times per turn. Gilgamesh is immune to most Stat Breaks and has a 50% resistance on MAG Breaks. Most of his attacks are hybrid so breaking his MAG is helpful. Gilgamesh will on his 1st turn use Barrier and Wall to buff his defenses by 70%, so this buff should be dispelled. After that Gilgamesh will use normal attacks, Tsubame Gaeshi (Single Target damage), X Slash (AoE damage) and Excalipher (deals light damage and is disabled by inflicted Light damage).

Gilgamesh has three thresholds at 80% (between the unit boxes, close to half the screen), 50% (at the end of the 1st unit's HP bar) and 30% HP (Between current/max HP divider), at which point he will use Gilgamesh Transform for a major DEF/SPR buff and then employs Bushido - Freedom, which inflicts AoE damage, Single Target Death and AoE Dispel.

Once Gilgamesh reaches the first threshold the true battle begins. Gilgamesh will gain several new elemental attacks with added gimmicks all of which can be prevented by inflicting damage from the respective element. His attacks are: Muramasa which inflicts Fire Damage, decreases ATK/DEF (50%) to one target and MP drain. Masamune deals Water damage and decreases MAG/SPR (50%) to one target. Whirlwind Blade which deals Wind damage and paralysis as well as decrease fire/water/wind/light resistance (50%) to one target. Finally he can use Zantetsuken for single target Earth HP damage (75%). Fire and Wind are rather relevant to keep on check, while Water and Earth are not as dangerous, although if possible, the player should aim to seal as many of them per turn as possible.

In the Global version of the game after reaching 50% HP, a new level of harassment is added; Electrocute which deals Lightning damage to all the party and decreases their DEF/SPR by 40% as well as Paralysis. This attack can only be prevented through Lightning Hybrid or Magic Damage, Physical attacks alone are useless. Electrocute must be prevented at all costs as the debuff can spell doom to the party in a matter of seconds. At 80% he gains Excalibur which inflicts Light Damage and Confusion to a single target.

If Gilgamesh is inflicted with Water damage 3 times during the battle (doesn't have to be in a row), he will use Break and end his turn. Break grants him major DEF/SPR buffs which should be dispelled. This tactic can be used to gain some breathing room. This will work only once during the entire battle and if triggered on a threshold, the abilities will be delayed until the next turn.

Strategy
The battle is all about two things, managing his thresholds and sealing Gilgamesh's moves.

To prepare for his thresholds the player should heal and break Gilgamesh's MAG and if possible use a Tank that is resistant to Death (Safety Bit and later on the Genji Shield are helpful). Healing constantly is important.

In order to seal Gilgamesh moves the player will need elemental coverage. Rain is a good option as his Lava Floor skill can inflict Earth/Fire damage at once, and if combined with other elemental weapons it can seal even more elements at once, specially if Dual-Wielding. Rain doubles as a Breaker and Buffer so he's useful.

The Rune Blade, Air Knife, Trident, are good weapons to use due to their Light, Wind and Water coverage. Rain cannot equip spears so somebody else will have to cover Water.

Since Lightning can only be prevented through Hybrid/Magic Lightning damage, the player will need to bring a Mage with Thundaga or alternatively Noctis' Thunder Flask. Sakura is a good unit as she can use Lightning magic and can buff the party's defenses. It should also be noted that if a unit deal Hybrid Damage while wielding a Lightning-elemental weapon it also counts.

In order to achieve all Missions the player will need MP batteries. Ling is a good option, and so is Bartz. Ling has the benefit of being a major utilitarian unit with breaks, revival and evasive too. Bartz can sacrifice himself to fully restore another unit, he also can deal Wind Damage and can equip Trident. Noctis' Cover is also useful as a MP healer and combined with Bartz and others can make MP fairly sustainable.

Gilgamesh possesses sturdy defenses, so using Setzer can also work in order to deal major fixed damage through Dice or Double Dice, although these are a gamble. A dual-wielding Orlandeau is also effective as it can deal tremendous damage through chains and can use Crush Weapon for a MAG Break.

An easy, although somewhat costly method to defeat Gilgamesh involves the use of evasion. All of Gilgamesh attacks, except the single target KO can be avoided so if the player brings in a unit capable of 100% evasion with Instant Death immunity, they should not lose.

If doing all the missions is too difficult the player can play it safest and attempt to do it in two rounds; the first one with 6-units but no item, and then the 5-unit one but now they have the benefits of items.