Suddenly increased ping

It’s was always around 70-80 (and this morning too), but now its like 250-500 sometimes and i don’t know why

TRACEROUTE:
traceroute to 5.18.206.72 (5.18.206.72), 15 hops max, 60 byte packets
 1  Blizzard Blizzard  0.292 ms  0.302 ms  0.313 ms Blizzard(24.105.18.3)  0.531 ms  0.698 ms  0.804 ms
 3  137.221.105.12 (137.221.105.12)  1.560 ms  1.583 ms  1.607 ms
 4  137.221.66.16 (137.221.66.16)  1.485 ms  1.530 ms  1.551 ms
 5  137.221.83.66 (137.221.83.66)  140.012 ms  140.041 ms  140.072 ms
 6  137.221.65.133 (137.221.65.133)  137.752 ms  138.423 ms  138.388 ms
 7  137.221.65.3 (137.221.65.3)  137.702 ms  137.843 ms  137.861 ms
 8  137.221.65.9 (137.221.65.9)  142.195 ms  142.222 ms  142.214 ms
 9  137.221.65.25 (137.221.65.25)  140.053 ms  140.096 ms  140.097 ms
10  137.221.65.91 (137.221.65.91)  139.989 ms  139.892 ms  140.256 ms
11  137.221.65.32 (137.221.65.32)  140.049 ms  140.015 ms  140.030 ms
12  137.221.65.28 (137.221.65.28)  137.874 ms  140.204 ms  140.229 ms
13  137.221.80.32 (137.221.80.32)  140.207 ms  139.850 ms  139.827 ms
14  * * *
15  5.18.4.250 (5.18.4.250)  445.888 ms  445.701 ms  452.867 ms


22/04/2019 18:19:14 UTC
--------------------

TRACEROUTE:
traceroute to 5.18.206.72 (5.18.206.72), 15 hops max, 60 byte packets
 1  Blizzard Blizzard  0.594 ms  0.598 ms  0.601 ms Blizzard(24.105.18.3)  1.102 ms  1.117 ms  1.122 ms
 3  137.221.105.12 (137.221.105.12)  1.077 ms  1.103 ms  1.138 ms
 4  137.221.66.16 (137.221.66.16)  1.103 ms  1.109 ms  1.115 ms
 5  137.221.83.66 (137.221.83.66)  170.092 ms  170.152 ms  170.159 ms
 6  137.221.65.133 (137.221.65.133)  138.373 ms  138.643 ms  138.621 ms
 7  137.221.65.3 (137.221.65.3)  138.546 ms  138.551 ms  138.233 ms
 8  137.221.65.9 (137.221.65.9)  140.484 ms  140.505 ms  140.070 ms
 9  137.221.65.25 (137.221.65.25)  140.195 ms  140.205 ms  140.208 ms
10  137.221.65.91 (137.221.65.91)  140.389 ms  141.318 ms  140.631 ms
11  137.221.65.32 (137.221.65.32)  140.631 ms  140.642 ms  140.638 ms
12  137.221.65.28 (137.221.65.28)  142.305 ms  140.625 ms  140.626 ms
13  137.221.80.32 (137.221.80.32)  154.296 ms  154.130 ms  154.097 ms
14  * * *
15  5.18.4.250 (5.18.4.250)  440.409 ms  438.833 ms  446.422 ms


22/04/2019 18:19:14 UTC
--------------------

PING:
PING 5.18.206.72 (5.18.206.72) 56(84) bytes of data.

--- 5.18.206.72 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3013ms



22/04/2019 18:19:14 UTC
--------------------

PING:
PING 5.18.206.72 (5.18.206.72) 56(84) bytes of data.

--- 5.18.206.72 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3007ms



22/04/2019 18:19:14 UTC
--------------------

MTR:
Start: Mon Apr 22 18:19:14 2019 Blizzard  1.|-- Blizzard                                 0.0%    10    0.3   0.3   0.2   0.5   0.0 Blizzard         0.0%    10    0.7   0.7   0.5   1.7   0.3
  3.|-- 137.221.105.12                               0.0%    10    0.5   0.7   0.5   1.2   0.0
  4.|-- 137.221.66.16                                0.0%    10    0.5   0.6   0.5   0.8   0.0
  5.|-- 137.221.83.66                                0.0%    10  157.2 144.1 140.0 162.5   8.4
  6.|-- 137.221.65.133                               0.0%    10  137.8 137.8 137.7 137.9   0.0
  7.|-- 137.221.65.3                                 0.0%    10  137.9 141.0 137.7 169.8  10.1
  8.|-- 137.221.65.9                                 0.0%    10  160.4 145.8 140.0 177.3  12.8
  9.|-- 137.221.65.25                                0.0%    10  140.3 143.4 139.8 173.8  10.6
 10.|-- 137.221.65.91                                0.0%    10  140.3 142.9 139.9 165.9   8.1
 11.|-- 137.221.65.32                                0.0%    10  140.1 144.6 139.9 170.8  10.2
 12.|-- 137.221.65.28                                0.0%    10  140.3 138.6 137.8 140.3   1.0
 13.|-- 137.221.80.32                                0.0%    10  139.7 140.1 139.7 140.7   0.0
 14.|-- ???                                         100.0    10    0.0   0.0   0.0   0.0   0.0
 15.|-- 5.18.4.250                                   0.0%    10  547.1 531.4 466.8 569.2  36.9
 16.|-- 5x18x206x72.static-business.iz.ertelecom.ru  0.0%    10  673.8 586.4 478.0 673.8  61.8


22/04/2019 18:19:14 UTC
--------------------

MTR:
Start: Mon Apr 22 18:19:14 2019 Blizzard  1.|-- Blizzard                                 0.0%    10    0.2   0.3   0.2   0.3   0.0 Blizzard         0.0%    10    0.6   0.6   0.5   0.7   0.0
  3.|-- 137.221.105.12                               0.0%    10    0.6   0.6   0.5   0.8   0.0
  4.|-- 137.221.66.16                                0.0%    10    0.6   0.7   0.6   0.8   0.0
  5.|-- 137.221.83.66                                0.0%    10  140.0 143.3 139.9 172.3  10.2
  6.|-- 137.221.65.133                               0.0%    10  137.7 143.0 137.7 189.7  16.4
  7.|-- 137.221.65.3                                 0.0%    10  137.7 137.9 137.7 138.5   0.0
  8.|-- 137.221.65.9                                 0.0%    10  139.9 141.9 139.9 158.7   5.9
  9.|-- 137.221.65.25                                0.0%    10  140.0 140.0 139.9 140.1   0.0
 10.|-- 137.221.65.91                                0.0%    10  140.1 140.8 140.0 147.4   2.2
 11.|-- 137.221.65.32                                0.0%    10  140.2 151.3 140.1 207.4  23.8
 12.|-- 137.221.65.28                                0.0%    10  140.0 141.4 137.7 162.5   7.4
 13.|-- 137.221.80.32                                0.0%    10  139.8 140.3 139.8 142.9   0.9
 14.|-- ???                                         100.0    10    0.0   0.0   0.0   0.0   0.0
 15.|-- 5.18.4.250                                   0.0%    10  572.6 533.3 444.7 576.0  42.4
 16.|-- 5x18x206x72.static-business.iz.ertelecom.ru  0.0%    10  570.5 541.3 458.5 576.2  36.6


22/04/2019 18:19:14 UTC
--------------------

Now it’s again 80
But in prev match ~270

The connection was 140ms before it left Blizzard’s routing partners, but then it suddenly gained another 433ms as soon as it reached your ISP. It’s likely your ISP has something going on, and I’m not sure about the lag on the Blizzard servers. You might be able to find more info on the EU forums, but I don’t know which part of Russia you’re connecting from or where ertelecom provides their services.