Ivern's Smite and Passive are Buggy
I've recently been playing Ivern and have noticed a couple bugs with him.
First off is his passive. Sometimes when you click a camp to perform "Friend of the Forest" he just stands there and you have to click a couple more times for him to use it (Note: this happens even when enough mana and health are available to use his passive).
Second is his smite. For whatever reason Ivern will sometimes not smite Drake, Baron, and Rift (Rift both in camp form and summoned form). This particular bug lead to harassment after an enemy stole our baron because I couldn't smite it.