that is, mechanics that only work with other cards that share said mechanic
Blazing Shoal could be a seriously unpleasant surprise, and if you pay its alternate casting cost, that leaves you plenty of mana extra to activate Ryus Hadoken ability
With 281 cards in the set (101 commons, 80 uncommons, 60 rares, 20 mythic rares, 20 basic lands) and 68 more new cards in the four commander decks, theres a ton of new toys
With [casthaven]Oloro, Ageless Ascetic[/casthaven] on the board, each creature you control gives you multikicker 1(w/b) draw a card, each opponent loses 2 life, you gain 1 life for each other player. Thats pretty damn cool, and unlike actual multikicker cards you dont have to choose to pay until after youve drawn your card