Once you learn the tricks of naming stuff, it gets a little obvious
The print sheet was meant to contain only Clefables, but an early version of that sheet mistakenly included a small number of Base Set Raichus alongside them
4 Town-Razer Tyrant At no point between Town-Razer Tyrant's two rebalances did it violate any restrictions that would stop it from existing as a paper card
And against currently played creature decks, either other sideboard cards are more important or their creatures are x/1, so they can be killed with Darkblast
While you technically only need two of each card - as only two of each card can be within a deck and the same cards can be used across multiple decks - you may want to save them up for different Flairs
So when your lands are destroyed, that isnt someone beating you at the game, thats someone preventing you from playing the game entirely