weak? then you have no idea how to use it.
Banish any special summoned monster even before it can activate its effect(except monster with quick effect) ex of victims: Noble kinght/blueyes/BW syncro/neos fusion/purgatrio. Banish any backrow in the same turn it put on the field. Oh, you destroyed my monster? you just made my job easier, you give me free ritual card and free fodder to ritual summon.
I won't say it weak but rather inconsistent.
There is a time when I win 12 match in a row in KOG with good hand, but sometimes you end up with only spell / ritual monster
Pre-preparation of rites, or even a frickin manju would be a blessing.