According to the comprehensive rules: if there are fewer than N cards in your library, you may reveal all the cards in your library. If you cast a card with ripple 4, and there are only 3 cards in your library, you will just reveal all three of those cards
Flying, first strike Whenever Sidar Jabari deals combat damage to a player, return target Knight creature card from your graveyard to the battlefield
And I didn't even go to many Grand Prix
Note: Some card effects like mass land destruction spells, would have dominated the list
Shapeshifter is a creature type , and changeling is a keyword ability
The first time I properly met Simon was at Pro Tour Oath of the Gatewatch, where his team, Team Eureka, broke this deck out into the world after previously only being seen as a fringe deck on Magic Online (funnily enough, the CEO of ThreeForOne, Oliver Polak-Rottman, was also part of Team Eureka!)