This is a staring contest we really don't mind losing
Here's how the deck looks with the upgrades added: Also to pre-emptively address some comments: one direction that you can take the upgrades is to really lean into Sliver Gravemother's encore ability and turn the deck into a straight-up Encore deck -- Buried Alive and Entomb cards to put slivers into your graveyard, Convergence of Dominion and Zirda, the Dawnwaker to make encore cost less (though PSA Training Grounds doesn't work, I see people suggesting it but sorry no), Mondrak, Glory Dominus to double the encore tokens, Sundial of the Infinite to keep the encore tokens permanently -- that sounds sweet and all but you'd need to do a massive rework of this entire precon, turning it from a Go Wide Sliver Combat deck to Sliver Reanimator essentially
There are three different kinds of Pokmon cards, you will find in what are called booster packs
As with most X damage spells, this is never going to feel especially efficient, but it does scale as the game goes on, and being able to go after your opponent makes it an effective finisher
Cynthia's Ambition 138/172 - Brilliant Stars Cynthia's Ambition 138/172 - Brilliant Stars The Pokmon Company Draw cards until you have 5 cards in your hand
The first is Artazon, which you should play early