With the ability to return to your hand every time its sent to the graveyard, its essentially a permanent 300 attack boost to one of your monsters
The power captured in the Single Strike Urshifu #151 Alternate Art is a great example of this
If you have choices of a Basic Pokmon of your deck and the other has 40HP and the other 50HP, you will probably go with the 50HP unless its retreat cost is horrible because it isnt KOable with Linear Attack
And even then, when you have strong players to test against, you have to worry about having both of you online at the same time
Important: Please note the trading card insert must be assembled and placed on the tower case's base before the case is built around it (the insert will not fit through the double door gap once the case is built)
Yusho, aiming to stop him, personally stood before Yuri