Trophy Collector does not show the stats gained from it in the mouse over menus.

[LV1024]

This goes for the 3 main stats you get (Ability Range, Bonus Health, and Sprint Speed). No matter the amount of stacks, if you mouse over the hero in the top of screen menu UI (or if its yourself, in the store category UI), their stats will show up as if they have no bonuses. The only stat the user themselves can see is their own hp amount being more than what is in the previously mentioned menus.