Whenever Shredder deals combat damage to a player, that player loses half their life, rounded up
You can start dumping your expensive Assassin spells onto the battlefield early , getting ahead of your opponents if Ezio sticks to the battlefield
With the increase in foils available through packs, theres no need for the MTGO redemption route
The deck is a White, Blue, and Green (or, Bant) deck that revolves around creatures that enter with +1/+1 counters, that synergise with Tidus, Yuna's Guardian's abilities
Thats especially true of Meticulous Excavation, a card that allows you to pay three mana to put a permanent you control back in its owners hand
Scion of Draco also fits multicolor decks pretty well, being able to give plenty of combat-related bonuses to gold creatures, and surprise, surprise, Leyline of the Guildpact also helps with these bonuses, extending them to all creatures including the Scion itself