The Rumble build for Top is Cryptbloom, Shadowflame, and Liandry's Torment. This LoL Rumble guide for Top at Platinum+ on 14.3 includes runes, items, skill order, and counters.
Rumble Counters
47.7%
(-1.7%)
51.5%
(-3.4%)
2.9%
(+0.6%)
2.8%
(+0.8%)
830
(-13)