General tips for dealing with Sylas
Sylas counter champions
If you use Lux correctly Sylas will have no way of touching her and neither of stealing her ulti, as Lux can keep a lot of distance from her enemy and pockearlo constantly.
We recommend that you use basic attacks to farmear and frizar the line in between and only use your skills to pockear Sylas the moment he approaches to farmear.
Orianna like the previous one has a lot of facility to counter Sylas because she has a good range of distance and at the same time has very good defense with her ball, keep the ball close to the minions while das last hit keeps Sylas zoned and is difficult to farmear considerably.
Jayce can be a good counter against Sylas, because in addition to being a long distance champion has good speed of movement to easily avoid the ulti of Sylas, plus you can occasionally pockearlo with the Q of Jayce.
With Taliyah in addition to the fact that you can keep his distance from him and constantly pockete him, you can also keep him at bay by pushing him away with the stones.