Heal Aura rune is broken

[Vigoss]

The rune only costs a few focus (5 I think?) to start channeling and it will still heal a huge amount even if it was not channeled fully. If it costs 50 focus to fully channel and I have 55, I can cast it twice and get two large heals. The 2nd cast even channels quicker due to the lack of focus points but does not reduce the heals much. This rune got me through a lot of challenge but it does not feel balanced. Thoughts?

[Trung Kien]

Why have to waste time casting when you can fully heal from 1/3 HP in literaly just 1 strike with lifesteal buid :v

[Lu2]

or just eat food. and spam weapon trows from distance. custom weapon runes makes game much easier