First, check for its rarity level by identifying the edition of the card
Palpitoad #20Common $0.14 Tympole (Master Ball Pattern) #19Common $2.75 Petilil (Master Ball Pattern) #6Common $3.85 Petilil #6Common $0.11 Amoonguss (Poke Ball Pattern) #11Uncommon $0.51 Volcarona (Poke Ball Pattern) #16Rare $0.49 Tympole #19Common $0.09 Foongus (Poke Ball Pattern) #10Common $0.49 Seismitoad (Poke Ball Pattern) #21Uncommon $0.55 Amoonguss #11Uncommon $0.12 Amoonguss #10Uncommon $0.70 Amoonguss #9Rare $0.46 Amoonguss #13Rare $0.26 Amoonguss #14Rare $0.25 Amoonguss #12Rare $0.05 Amoonguss #10Uncommon $0.18 Amoonguss #11Uncommon $0.12 Amoonguss #3Uncommon $0.13 Amoonguss #9Uncommon $0.11 Amoonguss #10Uncommon $0.32
Now the modern era Reserved List cards
I also prepared for the mirror by only running two field spells, because a) I didn't want to set up field spells on the chance that my opponent got Balerdroch in the GY and I didn't have an answer to it b) If I ever needed field spells, I could either search Vampire Kingdom with Vampire Takeover or Vampire Retainer or let my opponent activate a field spell instead, while allowing myself to use that deck space on more useful cards
If not, Special Summon the excavated monster, also send the remaining cards to the GY.
You pick a leader, a base, and fill your deck from two factions