071 142 pokemon card Iron Boulder 071/142 Sv07: Stellar Crown for sale and put them into your hand Krokorok- 142/086 & Farigiraf- 083/071

I can only get the lessons that are in the first seven slots, because, at the time, players put 14-15 different lessons without any downside in their sideboard, so WotC limited it to 7 slots in best-of-one to reduce this strategys effectiveness

That may be true, but this doesnt cause the issues that both players having a Sphinx caused

1 Norn's Choirmaster

For example, consider a deck whose commander is [c]Krenko, Mob Boss[/c]

This allows for the perfect intersection of defensive interaction (like Red Elemental Blast and Veil of Summer), brutal stax effects (like Archon of Emeria, Collector Ouphe, and Drannith Magistrate), and a consistent combo thanks to the many different tutors in the list

Understanding the condition, authenticity, and provenance of a card is crucial