Spoiler: Madred Rammus
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Lantern isn't a bad solo queue item on Rammus; you can funnel it through assists and fall back on it if ganks are hard to do. Rammus has a surprisingly strong 1v1 if he locks you up with Taunt and autos+Tremors you, Wriggles helps in that regard.

In Insec's case it was there to help out with Rammus' crappy clear speed into SotAG since he needs to be a tanky presence immediately. Like a reversed Madstone.