I was recently running a game with the following setup:
(5 Nobels; 3 Glacials)
I then got hold of a Spatula and a Giants Belt (Spatula was attached to Sejuani, from picking her up at the Wheel Round) and I placed the Giants belt, so I would be able to reach 4 Glacials by placing the Frozen Mallet on Lucian. However Sejuani kept the Frozen Mallet, and I had to sell her, if I wanted to remove the item.
Sejuani became a Glacial/Glacial/Knight.