A 5/5 with flying for six mana, Kokusho has a particularly potent death trigger, causing each opponent to lose five life when it dies, then gaining that much life for its controller
Tokens and go-wide creature strategies are among the most effective in the Naya colors: Whether its hosting as your aggro commander or a fashionably-late guest, Jetmir is guaranteed to be the life of the party
Simply put, if you spend the time before the event planning out how you will sideboard, then during the tournament itself you won't have to spend that time thinking too hard in-between games
What are some of the things that you most look forward to in Magic this year
That might seem redundant, but that also protects it from wither and infect sources of damage, as well as thing the trigger on combat damage to the creature so there is even more going on than at first blush