The Syndra build for Mid is Shadowflame, Stormsurge, and Luden's Companion. This LoL Syndra guide for Mid at Platinum+ on 14.3 includes runes, items, skill order, and counters.
Syndra Counters
Syndrawinslane against...
Win Rate
Matchup Rate
Annie
442 Matches
0.9%
Aurelion Sol
2161 Matches
4.3%
Vex
680 Matches
1.4%
Swain
278 Matches
0.6%
Galio
515 Matches
1.0%
Veigar
913 Matches
1.8%
Smolder
969 Matches
1.9%
Kassadin
871 Matches
1.7%
Ahri
1321 Matches
2.6%
Ryze
353 Matches
0.7%
Malzahar
950 Matches
Lissandra
659 Matches
1.3%
Naafiri
434 Matches
Twisted Fate
2819 Matches
5.6%
Cassiopeia
563 Matches
1.1%
Talon
624 Matches
1.2%
Azir
1249 Matches
2.5%
Orianna
1320 Matches
Jayce
275 Matches
0.5%
Taliyah
421 Matches
0.8%
Yone
1783 Matches
3.6%
Corki
Neeko
700 Matches
Karma
1217 Matches
2.4%
Viktor
942 Matches
Vladimir
920 Matches
Lux
1269 Matches
Gragas
347 Matches
Zoe
551 Matches
Tristana
472 Matches
Hwei
2213 Matches
4.4%
Anivia
782 Matches
1.6%
Syndraloseslane against...
Irelia
912 Matches
Yasuo
1745 Matches
3.5%
Fizz
1357 Matches
2.7%
Xerath
869 Matches
Diana
793 Matches
Zed
1392 Matches
2.8%
Vel'Koz
358 Matches
LeBlanc
958 Matches
Ekko
1127 Matches
2.2%
Akshan
613 Matches
Katarina
1877 Matches
3.7%
Akali
1684 Matches
3.4%
Qiyana
Sylas
1800 Matches