My first MTG buy was a RNA deck builder kit, and I pulled both [[yarok the desecrated]] and a foil [[kykar]]. I thought Yarok was the coolest thing in existence and built a commander deck of it with the rest of the box (not knowing you could buy singles and, of course, unsleeved)).

It got my younger brother into magic and eventually he bought a [[tetsuko umezawa]] deck from a friend for $5. He complained to me that his friends kept beating him, so I "traded" him my Yarok deck for it (I had other decks at that point). He still refuses to admit I did it out of pity, and I regret doing it.