Affects Version/s: Minecraft 15w35b
Fix Version/s: None
(Intel R HD Graphics card)
If you summon an AreaEffectCloud that can damage the player, the death message says.
[Player] Was killed by entity.AreaEffectCloud.name using magic.
[player] was killed by magic. (Which splash potions use)
A command to summon a (growing) area effect cloud with "Instant Damage" is here: