yugioh card families 25 Assorted Foil Rares Cards! All Foil Cards! : Toys & Games YU-GI-OH CCG: TWO-PLAYER STARTER SET

While Lurrus of the Dream-Den is clearly the most powerful companion (and probably in the discussion for top 10 cards of all time), it's not well suited for Standard

You could have a Level 1 player with 10 wins who is actually hiding his true skill so they created new accounts to do this in YOC

Given the mana you can generate with Jurassic Park, Setessan Tactics and its strive cost might do some good work for you

Estrids Invocation is particularly sweet here, since during each of your upkeeps you get an opportunity to exile it and bring it back to the battlefield, so if Jin-Gitaxias has transformed again, you can copy The Great Synthesis again

Japanese exclusive cards and limited Pokmon Center releases also hold high values