Talk:Health regeneration/@comment-31.151.103.68-20120528134453/@comment-114.76.171.27-20120531110925

AP Yi healing is helpful in a teamfight if enemy has no CC the breaks the channelling. (i.e. stuns and knockups) played with AP Yi on my team and he ran into the enemy team 5v1, activated meditate and sat there for the full duration healing faster than the enemy could damage him, taking all the focus successfully and then Q dealing tons of dmg to all enemies and left the fight giving us the opprtunity to pummel them since they were on cooldowns. Ofcourse it was a noob enemy team for not taking any proper CC and that shows that AP Yi isn't really viable against non-noob teams but it does show that he can heal like a bitch with his meditate. if he went AP

So answering you question, if he went full AP and having his normal base HP at lv 18 he would heal himself almost 3 times over.