User blog comment:Pacpac1997/Possible New Debuff Kind: Hp Freeze/@comment-4657589-20120625134220

Even though I love the idea, it would be a HUGE nerf to champions that rely on regeneration (Mundo and Swain, for example), but if you'd make it to an ultimate ability or an item, with good cooldown and duration, it could work. It still seems a bit complicated and imbalanced, tho.

On the other hand, this Damage delay is something very interesting. It could open brand new ways to towerdive and Kayle would be a god.

TL;DR version : Make 4 items, 2 AP based and 2 AD based, 1 heal delay (AD), One dmg delay(AD), one healdelay and one dmg delay for AP champs, and you're set.

The reason why I'd prefer these debuffs to be item passives is that it would add some sitiationality to item builds.