Tamiyo, Inquisitive Student / Tamiyo, Seasoned Scholar Tamiyo is a strange card in that it's a creature that provides value by being in play, but it doesn't do real damage to the opponent
Having a solid plan for sideboarding is important for three reasons: You identify which cards you will be taking out and putting into your deck , as swapping out the wrong cards could greatly hinder your deck's ability to function
"Millennium Ankh" is critical for the Deck, Summoning "The Unstoppable Exodia Incarnate", but shuffling non-"Millennium"/"Exodia" monster cards to Deck and locking you from Summoning for the rest of the turn
Even better, it does this by flickering itself, triggering all your constellation style effects like on Doomwake Giant, etc
and o Under penalty of perjury, you are the owner or authorized to act on behalf of the owner of a trademark that is allegedly infringed
And, like the most powerful creature in the Yu-Gi-Oh