Yuriko, the Tigers Shadow Yuriko, the Tiger's Shadow is among the formats most infamous commanders as its unique commander ninjutsu ability skirts commander tax, making it hard to profitably remove
Whenever you cast a permanent spell using mana produced by Tecutlan, discover X, where X is that spells mana value
As you probably know, before my game fell apart I was running a Ravenloft game and it just so happens that the most recent set of Magic cards: Innistrad, was becoming a rather large piece of inspiration for setting up my game, especially the monsters (see my Grave Titan)
Nightshade Harvester, Fate Unraveler, and Rampaging Ferocidon are all great ways to ensure that timely damage is dealt
You can use that prior to swinging and take out tapped things so that they cannot attack back or post combat and swinging and tapping out with your Knights to destroy the untapped stuff
It comes in with support as well with the tokens it creates to immediately help establish a field presence to start spreading infect counters to all of your opponents
