Heal Effects

[quote=nand]How do healing reduction and amplification stack, exactly? For example, if you apply [[Ignite]] and [[Executioner's Calling]], does it stack additively (100%?) or multiplicatively (1-(1-50%)�(1-50%) = 75%)? Or does it not stack at all? How about in combination with healing amplification effects like Spirit Visage? Are they additive (20% - 50% = -30% to healing) or multiplicative (1.2 * 0.5 = 0.6 -> -40% to healing)? Do either of these effects affect Lifesteal and Spell Vamp? What about flat health gains from passives like Warwick's? What about Mundo's cleaver?[/quote]

[quote=DEWO]Healing effects dont stack according to (unchanged untill today as far as i remember) patch notes v1.0.0.74 Lifesteal or Spellvamp is not affected by those. [url=http://www.leagueoflegends.com/board/showthread.php?p=646190]http://www.leagueoflegends.com/board/showthread.php?p=646190[/url][/quote]

[quote=nand]Alright, that clears some things up. Any ideas on how Spirit Visage interacts with healing debuffs?[/quote]

[quote=DEWO]As far as i remember (but that was the times when soraka was still usefull :)) It was additive stat. So +20%-50% = -30%[/quote]