Shadow Partner

Shadow Partner is a tier 4 buff of the Assassin branch.

Effect

A buff that summons the hero's shadow, which throws the same stars again: every star skill throws twice the stars while it lasts. It lasts 20 seconds at level 1 and 48.5 seconds at level 20.

Level	Duration	MP	In-game text
1	20 s	220	Spend MP 220, Duration 400
2	21.5 s	245	Spend MP 245, Duration 430
3	23 s	270	Spend MP 270, Duration 460
4	24.5 s	295	Spend MP 295, Duration 490
5	26 s	320	Spend MP 320, Duration 520
6	27.5 s	345	Spend MP 345, Duration 550
7	29 s	370	Spend MP 370, Duration 580
8	30.5 s	395	Spend MP 395, Duration 610
9	32 s	420	Spend MP 420, Duration 640
10	33.5 s	445	Spend MP 445, Duration 670
11	35 s	470	Spend MP 470, Duration 700
12	36.5 s	495	Spend MP 495, Duration 730
13	38 s	520	Spend MP 520, Duration 760
14	39.5 s	545	Spend MP 545, Duration 790
15	41 s	570	Spend MP 570, Duration 820
16	42.5 s	595	Spend MP 595, Duration 850
17	44 s	620	Spend MP 620, Duration 880
18	45.5 s	645	Spend MP 645, Duration 910
19	47 s	670	Spend MP 670, Duration 940
20	48.5 s	695	Spend MP 695, Duration 970

Requirements

Learnable by the Assassin from the fourth job advancement on (tier 4).
Each level costs one skill point; the maximum, level 20, takes 20 points.
Probably needs a claw: the game checks the branch's weapon when a skill is used, and the mechanics notes do not say whether buffs are exempt.

Strategy

It doubles Lucky Seven to four stars and the basic throw to two, at twice the star cost. At level 20 it costs 695 MP.

Notes

The in-game text gives the duration in ticks, 20 to a second at the default game speed. Casting the buff again while it lasts only restarts its timer.
While it lasts, every star skill throws twice the stars: Lucky Seven throws four and the basic throw two, and each extra star rolls its own damage.