1)
Robin nonAeg crit + Aeg nonCrt hit = 14 HP; 2.639%

a) Morgan nonPav hit + 2x Lucina DS + no sol = kill; 14.889%
b) 2x Morgan Pav hit + 2x Lucina DS + no sol = kill; 3.716%
c) Morgan nonPav hit + Morgan hit + no sol = kill; 27.001%

CoS if 1) happens: (a+b+c) * 2.639% = 1.204%

2)
Robin nonAeg crit + nonAeg nonCrt hit = 4 HP; 2.747%

a) Morgan first hit connect = kill; 83.47%
b) Morgan first hit whiff + 2nd hit connect + no sol = kill; 7.037%
c) 2x Morgan whiff + no sol + 2x Lucina DS = kill; 1.394%

CoS if 2) happens: (a+b+c) * 2.747% = 2.524%

3)
2x Robin Aeg crit = 24 HP; 0.346%

2x Morgan nonPav hit + 2x Lucina DS + no sol = kill; 4.026%

CoS if 3) happens: 0.346% * 4.026% = 0,01393%

Total CoS = 3.742%