Against fiddlesticks, Once Fiddlesticks has his Zhonya’s Hourglass, it allows his R to really hit home. If he channels his R and uses his Zhonya’s, you can’t attack him when he goes into stasis.
 
When Fiddlesticks gets access to 3 abilities, he is really difficult to deal with because they offer him so much utility. If you’re trying to go for an all in, make sure to fight when 1 ability is missing.
 
Of course, Fiddlesticks biggest power spike is his level 6. You can counter it by having constant wards around your lane. If he goes missing post 6, ping your teammates. Against fiddlesticks, Once Fiddlesticks has his Zhonya, it allows his R to really hit at home. If he channels his R and uses his Zhonya, you can't attack him when he goes into the stasis. When Fiddlesticks has access to 3 abilities, it's really hard to manage because they offer him so much utility. If you're trying to go for a whole in, make sure to fight when 1 ability is missing. Of course, Fiddlesticks' biggest power peak is his 6. You can counter him by having constant guards around your track. If he's going to miss position 6, ping your teammates.