Ekko 2XKO combo: 547 damage, expert+. During the second air charged heavy, keep the charge a little longer then necessary to make sure the s2 combos into…
M > H > T > [2H] > 9 > [j.H] ~ T > 66 > M > 2H > 9 > j.2H > S1 ~ T > 44 > 7 > j.S1 > S2 > 3S2 > 2H > j.H > S1 > S2 > [S2] > 2S2 > 66 > [S2] > 2S2
During the second air charged heavy, keep the charge a little longer then necessary to make sure the s2 combos into timewinder