This card may not be that great in the tournament scene right now, but it has some uses.
It can stop slow down Shura, Firedog and Fulhelmknight plays.
Not having a Main Phase 2 means players will have to set their spell/trap cards before they attack, this allows you to set up for cards like Greenkappa and Malevolent Catastrophe.
Although its not really practical, you could use this card with Timeater to set up a Pseudo-Yata Lock when used with cards like Ojama Trio.
It is quite an interesting card, but I don’t think anybody would play it competitively anyway.