Why so many mass shootings with Biden?

Actually, there were many mass shootings when Donald Trump was President,   Also President Biden is not Obama's puppet and does not agree with Obama all the time.  
More importantly, there is no connection between who is President and whether we have mass shootings  

Your assumptions are ridiculous.  

There have many mass shootings long before Biden took office.

No mass shootings under trump ?

The claim that there were no mass shootings under Trump is simply false.
In fact, the deadliest mass shooting in modern U.S. history took place during the Trump era. In October 2017, a gunman shot and killed nearly 60 people at a music festival in Las Vegas. 
While not an exhaustive list of every mass shooting that took place during the Trump administration, here are some of the deadliest incidents while Trump 
was in office:

In November 2017, 26 people were killed at a church in Sutherland Springs, Texas.

In February 2018, 17 people were killed at a high school in Parkland, Florida.

In May 2018, 10 people were killed at a high school in Santa Fe, Texas.

In October 2018, 11 people were killed at a synagogue in Pittsburgh, Pennsylvania.
In November 2018, 12 people were killed at a restaurant in Thousand Oaks, California.

In May 2019, 12 people were shot and killed at an office building in Virginia Beach, Virginia.

In August 2019, 22 people were killed at a Walmart in El Paso, Texas. 

@Lord Trollington is being sarcastic, folks.  Yes, we had mass shootings nearly every single day under Trump.  No one could be so stupid as to pretend we have no mass shootings under Trump.  LOL!!

Nah, you are just a lying scumbag.

False. You are lying.

No universal healthcare so no mental healthcare, real psychological healthcare is something only the rich can afford 

Biden America.....we are coming for your guns so you cant protect yourself