The Sion build for Top is Heartsteel and Grasp of the Undying. This LoL Sion guide for Top at Platinum+ on 13.23 includes runes, items, skill order, and counters.
Sion Counters
Sionwinslane against...
Win Rate
Matchup Rate
Malphite
2041 games
3.3%
Shen
802 games
1.3%
Quinn
401 games
0.7%
Kayle
967 games
1.6%
K'Sante
1505 games
2.5%
Singed
776 games
Nasus
1631 games
2.7%
Teemo
1327 games
2.2%
Dr. Mundo
761 games
1.2%
Jayce
1224 games
2.0%
Jax
2860 games
4.7%
Pantheon
801 games
Cho'Gath
788 games
Kennen
374 games
0.6%
Gangplank
1308 games
2.1%
Yorick
980 games
Vayne
427 games
Urgot
816 games
Camille
1306 games
Poppy
348 games
Akali
739 games
Sionloseslane against...
Aatrox
3519 games
5.7%
Mordekaiser
1442 games
2.4%
Renekton
1344 games
Yone
3513 games
Illaoi
1397 games
2.3%
Gwen
2423 games
4.0%
Irelia
953 games
Kled
396 games
Darius
2736 games
4.5%
Tryndamere
820 games
Sett
2037 games
Tahm Kench
Warwick
316 games
0.5%
Gnar
863 games
1.4%
Gragas
332 games
Trundle
1087 games
1.8%
Riven
1728 games
2.8%
Volibear
1071 games
1.7%
Ornn
1286 games
Fiora
1967 games
3.2%
Yasuo
563 games
0.9%
Olaf
625 games
1.0%
Garen
2654 games
4.3%
Rumble
743 games