To beat white weenie now you have to treat it more like a red deck and push for a win at some risk to your own survival but that is much harder against white as their board is that much stronger
From there, you can focus into a self-mill build to have more tools, or on a Voltron mutate build that combines the mutate effects, with cards like Dirge Bat and Sawtusk Demolisher
If you don't want to cast some (or all) of the copies, you may choose not to
Shorikai is one of the best Azorious vehicles Commanders due to such easy access to card draw, and as long as you can fish lands out of your yard and play extra ones, Hearthhull is in a similar space
Since that time, counterfeiting, trimming, and substitution have become prevalent in the industry
4 Level 10 monstersCannot be destroyed by battle