If you want to be extra secure, you can put your card in two sleeves simultaneously, a practice known as double sleeving
More importantly, everything else that triggers on the end step also goes again
Moreover, Sam, Loyal Attendant provides great cost reduction in Food which although it is not counted as ramp, it helps reduce the mana cost in one of the main aspects of the deck so he greatly empowers deck utility and consistency
A Shiny Charizard with its primary type changed directly to Dark was also introduced to the Dragon Frontiers expansion in 2006
It was Invasion block, so I was trying to promote playing as many colors as possible (that was a major theme of Invasion block)
This is frequently done to Legendary Pokmon to make them seem more imposing and powerful