Maw of Mal...Malmor....the Maw [Gameplay]
seems to be triggering both Unique Lifeline passives. When I see adcs build it they receive the Maw shield but also grow in size as if they had a Steraks. It does NOT look like they receive the Sterak's shield and I didn't really check if they got the extra base AD (though I could theoretically go into a custom and find out). I don't know if this is intended and is therefore a tooltip bug or if its just weird layering of Lifeline passives but...there it is.