Ultimate Crossover (アルティメット・クロスオーバー, Arutimetto Kurosuōbā?) is the strongest ability used by Elidibus when fought as the "Warrior of Light" in Final Fantasy XIV: Shadowbringers. It is represented as a level 4 Limit Break, an ability that transcends all limits. To survive the party must use their own level 3 Tank Limit Break and further damage mitigation abilities, and even then extreme damage will be dealt. Ultimate Crossover can be used a second time as the enrage of the fight; in this case, a successful cast ends the fight.
Dissidia Final Fantasy (2008)
Crossover is an aerial physical Bravery attack for Warrior of Light, learned by default. It requires 30 CP to equip (15 when mastered), 120 AP to master, is Melee Low, can induce both Chase and Wall Rush, and generates 40 EX Force. It will move Warrior of Light towards the opponent while spinning his shield, and then will stab and knock the opponent into the air. With Crossover, Warrior of Light is able to use the ability Rune Saber (Midair).
Crossover is a Bravery attack for Warrior of Light, learned by default. It is identical to its previous appearance, but now generates 90 EX Force instead of 40.