It can make itself bigger with its own ability, but the flexibility to spread the effect to other creatures, potentially all you other creatures, is really good
Currently, the game is split between two major formats: Wanderer format, which allows play of every card aside from those from the Valhalla clusters, and ABC Format, meant to allow more players in one game
At the beginning of your upkeep, each opponent creates a 1/1 white Soldier creature token
(The card still stuck in his hand is removed from the US version.) But Kaiba leaps on him and pushes him aside
This is a great tool in many shells
In the 8th environment in which this card appeared, Xyz Summoning was a common summoning method, so it was easy to aim for an RBI increase itself, but as time passed, various summoning methods and theme groups were added, making it an inefficient monster