Titles of the series have sold over 204 million units worldwide.
You could offer $500, but since you are actually trying to negotiate and not just throwing out a hail mary, an offer this low could make the seller less interested in negotiating
though, Wall of Shards forces you to let your opponents gain life: one on your first upkeep, two on your second, and so on
It just makes a lot more sense to curve out with Blazing Bomb, Sahagin, The Emperor, Ultros and Shantotto, THEN start chaining together copies of Retrieve the Esper, rather than trying to play noncreature spells the whole game
Don't sweat it if you don't have all the rules down pat
Here they'll copy token creatures that you made with Volo's cast trigger