Item that builds a pillar under you

[Octopuses]

Active item that builds a pillar under you and props you up and stays there for certain amount of time. This could serve to give you a better vantage point but also to potentially block someone's way or let you ally hide behind it. Multiple purposes and could look fun and cool.

However, you wouldn't be able to use it just anywhere because you don't want to end up in the ceiling.