Wait so the passive shield keystone gives a shield based on enemy champs?
It says you gain a shield for 10+10 per level + 7%max hp as a shield for every nearby enemy champion after hard CC'ing an enemy champion. Shield lasts 4 seconds and has a 30 second cool down.
Does the shield stack up 5 times or is it just as long as an enemy champion is nearby and you hard cc them you get the shield?