Under Night In-Birth/UNI2/Seth/Combos

Recommended to watch SploogieMcNoodle's BnB video for UNI2 until the wiki is updated: https://www.youtube.com/watch?v=BX11xpOxUiY

Notation

Seth's combos involve a lot of side switches, quick inputs and have various ways to input the same combos. As you come across Seth documents or ask for routes, a lot of people refer to these moves differently, so here are common ways of referring to Seth's moveset as well as other common ways of notating it.

• Corner Carry
• j.22~6x: Commonly mentioned as Fastfall Kick, Fastfall~6X, FF Kick or simply FFK; j.2A+B~6X.
• j.214A: A Dive
• 214x~B: B Blink, 214[B].
  • 214x~B side-switch: 214x~4B, 21[4B].
• 214x~C: C Blink, 214[C]
  • 214x~C side-switch: 214x~4C, 21[4C].
• 236x or simply x Orb e.g. 236b = B Orb
  • j.236X: j.X Orb
• 632146X: 6246X, X Grab, X Command Grab, x Cmd Grab, or EX Cmd Grab for 632146C.

UNI2 Update

Seth gets 3 new moves in the UNI2 update, excluding the new mid-combo A+B "Steer Ender," as referred to by Kamone in a UNI2 stream.

• 2B+C: 2FF or simply fat orb
• j.B+C: j.FF or air fat orb
• 66B+C: 66FF

New force function moves in combos:

• 66B(1) > 2FF > tk j623A can be used in most combos instead of 66B(1) > 214X~B > j623A for a substantial amount of extra damage in exchange for GRD (does not work for non CH assault starters).
• jFF can be added after 632146B, although the damage increase is very minimal.

Combos

Start Here

Combo	Damage	Cost	Meter Gain	Location
Stuff > 5CC > 214X~B > j.22~6X > j.6C > j.236B > j.214A > dl 214X~C > 6C > orb set				Anywhere
Slight variation of mission 4-1, a UNIst BNB, still very important to learn due to the fact you can convert into it from most anything. Vanilla 4-1 is not used primarily because the j.6c ender gives worse knockdown, and thus worse oki than a grounded 6C. 2A > 2A > 2B can be replaced with most ground strings, whereas 5CC can be replaced with any C normal. The combo part starting from j.22~6x can be used to confirm almost every hit into a knockdown with an orb set. Can be easily altered to cover different needs during a match (Vorpal Strip, EX ender, CVO, etc).
Stuff > 5CC > 214X~B > j.22~6X > dl j.623B > j.236A > j.214A > 214X~8X > 6C > orb set				Anywhere
The CL-R bnb. The main reason the previous combo is more reliable than this one is due to j.623B having one time use hitstun proration. This combo however, does work on slightly worse prorated starters in general (think 2A2A2A2A). You wanna make sure you input j.623B as low to the ground as possible (TK highly recommended) Advice on the entire last sequence will be posted in the resource links at the end of the doc :)
Anything > 2C(1) > 5C > 623B > 623A > 66B(1) > 214X~B > j.623A > FFK > tk.j.623B > j.236a > j.214a > 214X~8X > 6C > orb set				Anywhere
The combo recommended to learn and master. Works on every starter 5C can be replaced with 2B/5B or omitted altogether with 2C instead of 2C(1). 623B can be omitted to make the combo slightly easier.
Anything > 2C(1) > 5C > 623B > 623A > 66B(1) > 2FF > tk j.623A > FFK > tk j.623B > j.236a > j.214a > 214X~8X > 6C > orb set				Anywhere
UNI2 version of the above combo. Works on every starter except for non counter hit/GRD break assault starters. As this combo uses 2FF, it's vital to realize when the damage increase is not worth the GRD cost.

Starter Specific Combos

• 5A starters can be replaced with 2A
• 5B starters can be replaced with 2B

A Starters

Combo	Damage	Cost	Meter Gain	Location
5A > 2C(1) > 5C > 623B > 623A > 66B(1) > 214X~B > FFK > tk j623B > j.236A > j.214A > Axe Kick > 6C > orb set	3142		82	Anywhere
Works on almost every starter and does very high damage. Essential combo. Can work with two 2As.
5A > 5B > 5CC > 623B > jA > j2C > j623A > FFK > tk j623B > j.236A > j.214A > 214X~B > j.22 > 623A > 6C > orb set	3085		74	Corner
Useful for if you confirmed into 5CC in the corner.
5A > 3C > 214X~B > j623B > dl FFK > j6C > j236B > j214A > 623B > dl 66C > dash 6C > orb set	2867		63	Anywhere
5A anti air starter. Can do 214X~C > 6C instead of 623b > etc in order to avoid sending the opponent mid screen.

B Starters

Combo	Damage	Cost	Meter Gain	Location
5B > 2C(1) > 5C > 623B > 623A > 66B(1) > 214X~B > FFK > tk j623B > j.236A > j.214A > Axe Kick > 6C > orb set	3268		83	Anywhere
5B > 5CC > 623B > dl 66C > 623A > 66B(1) > 214X~B > j623A > FFK > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3348		88	Midscreen
5B > 5CC confirm.
5B > 5CC > 623B > 5C > 623A > 66B(1) > 214X~B > j623A > FFK > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3338		86	Corner
5B > 5CC confirm in the corner.
5B > 5CC > 214X~C > 66C > 623B > tk j623A > FFK > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3277		82	Midscreen
Corner carry route.
66B > 623B > 5C > 623A > 66B(1) > 214X~B > j623A > FFK > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3200		81	Anywhere
66B route. If 623B puts you too far away for 5C, do the 5B > 5CC confirm instead.

C Starters

Combo	Damage	Cost	Meter Gain	Location
5C > 2C > 623B > 623A > 66B(1) > 214X~B > j623A > FFK > tk j623B > j.236A > j.214A > Axe Kick > 6C > orb set	3345		83	Anywhere
2C > 623B > 623A > 66B(1) > 214X~B > j22 > jC > j2C > j623A > FFK > tk j623B > j.236A > j.214A > Axe Kick > 6C > orb set	3416		86	Anywhere
5CC > 214X~C > 66C > 623B > tk j623A > FFK > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3320		82	Midscreen
Corner carry route
5CC > 214X~C > 623B > 623A > 66B(1) > 2FF > tk j623A > FFK > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3583		89	Midscreen
This route does significantly less when not using 2FF, thus only the 2FF version is included.
5CC > 623B > 5C > 623A > 66B(1) > 214X~B > j623A > FFK > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3296		84	Corner
5CC > 623B confirm in the corner.
5CC > 214X~B > 623A > 5B > 623B > tk j623A > FFK > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3271		87	Corner
5CC > 214X~B confirm in the corner.
5CC > 214X~B > FFK > 623B > 623A > 66B(1) > 214X~C > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3273		87	Midscreen
5CC > 214X~B confirm midscreen.
5CC > 214X~C > 623B > 623A > 66B(1) > 2FF > 236B > jC > j623A > FFK > j2C > j623B > j22 > 5B > 632146B > j6C > orb set	3741		89	Anywhere
5CC Route that does slightly more damage than the other 5CC route that utilizes 2FF. Oki is a bit mediocre with this ender, thus its recommended to use meter via j6C > j214A > Axe Kick > 623C. Replace 236B with 236A in the corner. You want the opponent as close to the ground as possible after 66B(1) which is possible by delaying your 623Xs or your 66B(1). The jC should be done as quick as possible.
66C > 623B > tk j623A > FFK > 623A > 66B(1) > 214X~C > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3420		84	Midscreen
66C Starter Midscreen

Assault Starters

Combo	Damage	Cost	Meter Gain	Location
j6D > jC > 2A > 2C(1) > 5C > 623B > 623A > 66B(1) > 214X~B > j623A > FFK > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	2853		87	Anywhere
j6D > CH jC > 2A > 2C(1) > 5C > 623B > 623A > 66B(1) > 214X~C > tk j623B > FFK > j6C > j236B > j214A > 214X~B > j22 > 66C > 6C > orb set	3373		85	Anywhere
CH assault jC route. Also works on GRD break.
j6D > CH jC > 2A > 2C(1) > 5C > 623B > 623A > 66B(1) > 214X~C > tk j623B > FFK > j6C > j236B > j214A > dl 632146B > j623A > j44 > j6C > j214A > 623C	4071	100	90	Anywhere
CH assault jC route (metered version). Also works on GRD break.

Special Starters

Combo	Damage	Cost	Meter Gain	Location
(j) 236X > (Wait for crumple) 5C > 623B > 623A > 66B(1) > 214X~B > j623A > FFK > tk j623B > j236A > j214A > 632146B > j44 > j6C > orb set > j22	2677		74	Anywhere
Orb Starter. Can also do 2C(1) > 5C if you don't want to time 5C with the crumple.
623B > 5C > tk j623A > 623A > 66B(1) > 214X~C > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3562		74	Anywhere
CLR 623B Starter.
623B > 5C > 214X~C > 623A > 66B(1) > 2FF > jC > jA > j2C > j623A > FFK > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3894		94	Midscreen
UNI2 623B Starter.
j214A > 623B > 66C > 623A > 66B(1) > 214X~B > j623A > FFK > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3192		85	Midscreen
j214A starter midscreen.
j214A > 623A > 2B > 623B > 5C > 214X~B > j623A > FFK > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3149		83	Anywhere
j214A > 623A confirm.
j214A > 214X~B > j623A > FFK > 623B > 623A > 66B(1) > 214X~C > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3131		90	Midscreen
j214A > 214X~B confirm midscreen.
CH 623A > 2A > 5C > 214X~B > j623A > FFK > 623B > 214X~C > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	3386		88	Anywhere
CH 623A starter without chain shift. Can only be done at some spacings or if the opponent delay techs. Should auto pilot into 2A whenever 623A connects.
j214B > CS > j6D > jA > jC > 5B > 623B > 623A > 66B(1) > 214X~B > j623A > FFK > 623B > 214X~C > tk j623B > j236A > j214A > Axe Kick > 6C > orb set	2777	Chain Shift	35	Anywhere
j214B starter. Requires vorpal in order to use chain shift.

Metered Enders

Combo	Damage	Cost	Meter Gain	Location
x > j214A > 632146B > j66 > j44 > j6C > FFK > Axe Kick > 623C				Anywhere
Works on essentially everything other than orb starters/orb hitting mid combo. If orb starter/orb hits mid combo, omit the j66.
x > j214A > 632146B > j6D > jC > j6C > FFK > Axe Kick > 623C				Anywhere
Does slightly more damage but only works if combo isn't heavily prorated.
x > j214A > 632146B > j66 > j44 > j6C > j214A > Axe Kick > 623C				Anywhere
Useful for when you're unsure if FFK will cross up in the corner or not. Also useful for when you're down a ground/wall bounce (omit Axe Kick in this case).
x > j214A > 632146B > j66 > j44 > j6C > FFK > 3C > 5AB > IW/IWEX/CVO				Anywhere
Uses the new 5AB move to very slightly increase damage when going into IW. 5AB will side-swap you unless the opponent is in the corner after 3C.