Dual Mastery (デュアルエストリカ, Dyuaru Esotorika, lit. "Dual Esoterica")
Attributes		Target	Gauge Cost	Damage
Speed	Upright	All	0	7★: x6.93 SN++: 20.90
6★: Deals 13 slightly powerful hits. Moderately recovers HP. 7★: Deals 13 slightly powerful hits. HP recovery LV 2. SN++: Deals 13 hits. 1 turn: S-Medal STR +10000, self [↑ STR, U- & S-STR 15], targets [↓ DEF, U- & S-DEF 15], SP ATK B +220%. Gauge +5. HP recovery LV 2. Count +2.
Dual Thrust (デュアルエストリカ, Dyuaru Esotorika, lit. "Dual Esoterica")
Attributes		Target	Gauge Cost	Damage
Magic	Reversed	All	1	7★: x9.64 - 10.94
6★-7★: Deals 13 hits. 1 turn: ↑ R- & M-STR 15, STR 5, ↓ targets' R- & M-DEF 15. Resets count. Damage+: 1 enemy or 0 parts left. Gauge +3.

Dual Mastery, also called Dual Thrust, is a technique that appears in Kingdom Hearts Union χ.

Mechanics

In Kingdom Hearts Union χ, Dual Mastery is a special attack that targets all enemies. It costs 0 special attack gauges to perform. It moderately restores the user's HP. Dual Mastery +7 also fills 5 special attack gauges, and raises enemy counters by 2.

Special attack	Rarity	Base	•	••	•••	••••	•••••		Hits
Dual Mastery +5	6★	x1.57	x1.61	x1.65	x1.69	x1.73	x1.77		13
Dual Mastery +6	7★	—	—	—	—	—	x6.93		13
Dual Mastery +7	SN++	—	—	—	—	—	x20.90		13

Special attack	Player Buff		Target Debuff		Duration
	+5-6	+7	+5-6	+7
Dual Mastery	—	+10000  +15  +15  +15  +220%	—	-15  -15  -15	1 turn

Dual Thrust is a special attack that targets all enemies. It costs 1 special attack gauge to perform. It resets enemy counters, fills 3 special attack gauges, and inflicts more damage when one enemy remains.

Special attack	Rarity	Base	•	••	•••	••••	•••••		Hits
Dual Thrust +5	6★	x4.18 - 5.48	x4.24 - 5.54	x4.30 - 5.60	x4.36 - 5.66	x4.42 - 5.72	x4.48 - 5.78		13
Dual Thrust +6	7★	—	—	—	—	—	x9.64 - 10.94		13

Special attack	Player Buff	Target Debuff	Duration
	+5-6	+5-6
Dual Thrust	+5  +15  +15	-15  -15	1 turn

Learning Dual Mastery

Kingdom Hearts Union χ

• Dual Mastery +5 is the special attack for medal 670: Sora & Roxas.
• Dual Mastery +6 is the special attack for medal 1310: Sora & Roxas.
• Dual Mastery +7 is the special attack for medal 1310: SN++ - Sora & Roxas.

• Dual Thrust +5 is the special attack for medal 1692: Roxas [+].
• Dual Thrust +6 is the special attack for medal 1693: Roxas [+].

• Kingdom Hearts Union χ special attacks