Trade Smart : Swap bulk for Alolan Exeggutor ex SIR ($33) in communities
Historically, some Commander groups used the "Partial Paris" mulligan, which allowed players to exile any number of cards from the hand, draw that many minus one, then shuffle the exiled cards back
However, I agree with you that Burn is still a popular deck because it is a budget option, and you should be prepared for it when playing a Legacy tournament
After that you can flicker it it comes back as a creature and its enters ability triggers again
Valgavoth differs from the other commanders by wanting the triggers to be repeatable for each of your opponents on their turn to gain maximum value
If your cards are in slightly lower condition than expected, the payout adjusts based on their grading scale, but you can request to be contacted before they finalize any changes